Enable necessary kernel networking options for virtio-net device

Enabled kernel configuration options required for networking
functionality,including `CONFIG_NET`,`CONFIG_INET`,`CONFIG_VIRTIO`,
`CONFIG_VIRTIO_NET`,`CONFIG_NETDEVICES` etc.
Additionally, enabled specific networking commacands necessary for
testing the virtio-net device.

Author: jimmylu890303

Diff for: configs/busybox.config

@@ -849,14 +849,14 @@ CONFIG_TREE=y
 #
 # CONFIG_FEATURE_IPV6 is not set
 # CONFIG_FEATURE_UNIX_LOCAL is not set
-# CONFIG_FEATURE_PREFER_IPV4_ADDRESS is not set
+CONFIG_FEATURE_PREFER_IPV4_ADDRESS=y
 # CONFIG_VERBOSE_RESOLUTION_ERRORS is not set
 # CONFIG_FEATURE_ETC_NETWORKS is not set
 # CONFIG_FEATURE_ETC_SERVICES is not set
 # CONFIG_FEATURE_HWIB is not set
 # CONFIG_FEATURE_TLS_SHA1 is not set
-# CONFIG_ARP is not set
-# CONFIG_ARPING is not set
+CONFIG_ARP=y
+CONFIG_ARPING=y
 # CONFIG_BRCTL is not set
 # CONFIG_FEATURE_BRCTL_FANCY is not set
 # CONFIG_FEATURE_BRCTL_SHOW is not set
@@ -869,7 +869,7 @@ CONFIG_TREE=y
 # CONFIG_FTPGET is not set
 # CONFIG_FTPPUT is not set
 # CONFIG_FEATURE_FTPGETPUT_LONG_OPTIONS is not set
-# CONFIG_HOSTNAME is not set
+CONFIG_HOSTNAME=y
 # CONFIG_DNSDOMAINNAME is not set
 # CONFIG_HTTPD is not set
 CONFIG_FEATURE_HTTPD_PORT_DEFAULT=0
@@ -888,21 +888,21 @@ CONFIG_FEATURE_HTTPD_PORT_DEFAULT=0
 # CONFIG_FEATURE_HTTPD_LAST_MODIFIED is not set
 # CONFIG_FEATURE_HTTPD_DATE is not set
 # CONFIG_FEATURE_HTTPD_ACL_IP is not set
-# CONFIG_IFCONFIG is not set
-# CONFIG_FEATURE_IFCONFIG_STATUS is not set
-# CONFIG_FEATURE_IFCONFIG_SLIP is not set
-# CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ is not set
-# CONFIG_FEATURE_IFCONFIG_HW is not set
+CONFIG_IFCONFIG=y
+CONFIG_FEATURE_IFCONFIG_STATUS=y
+CONFIG_FEATURE_IFCONFIG_SLIP=y
+CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ=y
+CONFIG_FEATURE_IFCONFIG_HW=y
 # CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS is not set
 # CONFIG_IFENSLAVE is not set
 # CONFIG_IFPLUGD is not set
-# CONFIG_IFUP is not set
-# CONFIG_IFDOWN is not set
+CONFIG_IFUP=y
+CONFIG_IFDOWN=y
 CONFIG_IFUPDOWN_IFSTATE_PATH=""
-# CONFIG_FEATURE_IFUPDOWN_IP is not set
-# CONFIG_FEATURE_IFUPDOWN_IPV4 is not set
-# CONFIG_FEATURE_IFUPDOWN_IPV6 is not set
-# CONFIG_FEATURE_IFUPDOWN_MAPPING is not set
+CONFIG_FEATURE_IFUPDOWN_IP=y
+CONFIG_FEATURE_IFUPDOWN_IPV4=y
+CONFIG_FEATURE_IFUPDOWN_IPV6=y
+CONFIG_FEATURE_IFUPDOWN_MAPPING=y
 # CONFIG_FEATURE_IFUPDOWN_EXTERNAL_DHCP is not set
 # CONFIG_INETD is not set
 # CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_ECHO is not set
@@ -911,20 +911,20 @@ CONFIG_IFUPDOWN_IFSTATE_PATH=""
 # CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_DAYTIME is not set
 # CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_CHARGEN is not set
 # CONFIG_FEATURE_INETD_RPC is not set
-# CONFIG_IP is not set
-# CONFIG_IPADDR is not set
-# CONFIG_IPLINK is not set
-# CONFIG_IPROUTE is not set
-# CONFIG_IPTUNNEL is not set
-# CONFIG_IPRULE is not set
-# CONFIG_IPNEIGH is not set
-# CONFIG_FEATURE_IP_ADDRESS is not set
-# CONFIG_FEATURE_IP_LINK is not set
-# CONFIG_FEATURE_IP_ROUTE is not set
+CONFIG_IP=y
+CONFIG_IPADDR=y
+CONFIG_IPLINK=y
+CONFIG_IPROUTE=y
+CONFIG_IPTUNNEL=y
+CONFIG_IPRULE=y
+CONFIG_IPNEIGH=y
+CONFIG_FEATURE_IP_ADDRESS=y
+CONFIG_FEATURE_IP_LINK=y
+CONFIG_FEATURE_IP_ROUTE=y
 CONFIG_FEATURE_IP_ROUTE_DIR=""
-# CONFIG_FEATURE_IP_TUNNEL is not set
-# CONFIG_FEATURE_IP_RULE is not set
-# CONFIG_FEATURE_IP_NEIGH is not set
+CONFIG_FEATURE_IP_TUNNEL=y
+CONFIG_FEATURE_IP_RULE=y
+CONFIG_FEATURE_IP_NEIGH=y
 # CONFIG_FEATURE_IP_RARE_PROTOCOLS is not set
 # CONFIG_IPCALC is not set
 # CONFIG_FEATURE_IPCALC_LONG_OPTIONS is not set
@@ -938,31 +938,31 @@ CONFIG_FEATURE_IP_ROUTE_DIR=""
 # CONFIG_NC_SERVER is not set
 # CONFIG_NC_EXTRA is not set
 # CONFIG_NC_110_COMPAT is not set
-# CONFIG_NETSTAT is not set
+CONFIG_NETSTAT=y
 # CONFIG_FEATURE_NETSTAT_WIDE is not set
 # CONFIG_FEATURE_NETSTAT_PRG is not set
-# CONFIG_NSLOOKUP is not set
-# CONFIG_FEATURE_NSLOOKUP_BIG is not set
-# CONFIG_FEATURE_NSLOOKUP_LONG_OPTIONS is not set
+CONFIG_NSLOOKUP=y
+CONFIG_FEATURE_NSLOOKUP_BIG=y
+CONFIG_FEATURE_NSLOOKUP_LONG_OPTIONS=y
 # CONFIG_NTPD is not set
 # CONFIG_FEATURE_NTPD_SERVER is not set
 # CONFIG_FEATURE_NTPD_CONF is not set
 # CONFIG_FEATURE_NTP_AUTH is not set
-# CONFIG_PING is not set
+CONFIG_PING=y
 # CONFIG_PING6 is not set
-# CONFIG_FEATURE_FANCY_PING is not set
+CONFIG_FEATURE_FANCY_PING=y
 # CONFIG_PSCAN is not set
-# CONFIG_ROUTE is not set
+CONFIG_ROUTE=y
 # CONFIG_SLATTACH is not set
 # CONFIG_SSL_CLIENT is not set
 # CONFIG_TC is not set
 # CONFIG_FEATURE_TC_INGRESS is not set
 # CONFIG_TCPSVD is not set
 # CONFIG_UDPSVD is not set
-# CONFIG_TELNET is not set
-# CONFIG_FEATURE_TELNET_TTYPE is not set
-# CONFIG_FEATURE_TELNET_AUTOLOGIN is not set
-# CONFIG_FEATURE_TELNET_WIDTH is not set
+CONFIG_TELNET=y
+CONFIG_FEATURE_TELNET_TTYPE=y
+CONFIG_FEATURE_TELNET_AUTOLOGIN=y
+CONFIG_FEATURE_TELNET_WIDTH=y
 # CONFIG_TELNETD is not set
 # CONFIG_FEATURE_TELNETD_STANDALONE is not set
 CONFIG_FEATURE_TELNETD_PORT_DEFAULT=0
@@ -976,7 +976,7 @@ CONFIG_FEATURE_TELNETD_PORT_DEFAULT=0
 # CONFIG_FEATURE_TFTP_BLOCKSIZE is not set
 # CONFIG_TFTP_DEBUG is not set
 # CONFIG_TLS is not set
-# CONFIG_TRACEROUTE is not set
+CONFIG_TRACEROUTE=y
 # CONFIG_TRACEROUTE6 is not set
 # CONFIG_FEATURE_TRACEROUTE_VERBOSE is not set
 # CONFIG_FEATURE_TRACEROUTE_USE_ICMP is not set
@@ -999,16 +999,17 @@ CONFIG_FEATURE_TELNETD_PORT_DEFAULT=0
 CONFIG_DHCPD_LEASES_FILE=""
 # CONFIG_DUMPLEASES is not set
 # CONFIG_DHCPRELAY is not set
-# CONFIG_UDHCPC is not set
-# CONFIG_FEATURE_UDHCPC_ARPING is not set
-# CONFIG_FEATURE_UDHCPC_SANITIZEOPT is not set
+CONFIG_UDHCPC=y
+CONFIG_FEATURE_UDHCPC_ARPING=y
+CONFIG_FEATURE_UDHCPC_SANITIZEOPT=y
 CONFIG_UDHCPC_DEFAULT_SCRIPT=""
 CONFIG_UDHCPC6_DEFAULT_SCRIPT=""
 # CONFIG_UDHCPC6 is not set
 # CONFIG_FEATURE_UDHCPC6_RFC3646 is not set
 # CONFIG_FEATURE_UDHCPC6_RFC4704 is not set
 # CONFIG_FEATURE_UDHCPC6_RFC4833 is not set
 # CONFIG_FEATURE_UDHCPC6_RFC5970 is not set
+
 CONFIG_UDHCPC_DEFAULT_INTERFACE=""
 # CONFIG_FEATURE_UDHCP_PORT is not set
 CONFIG_UDHCP_DEBUG=0

Diff for: configs/linux-x86.config

@@ -15,7 +15,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 # CONFIG_SGETMASK_SYSCALL is not set
 # CONFIG_SYSFS_SYSCALL is not set
 # CONFIG_FHANDLE is not set
-# CONFIG_POSIX_TIMERS is not set
+# CONFIG_POSIX_TIMERS=y
 # CONFIG_BUG is not set
 # CONFIG_PCSPKR_PLATFORM is not set
 # CONFIG_BASE_FULL is not set
@@ -115,3 +115,15 @@ CONFIG_FRAME_WARN=1024
 # CONFIG_X86_DEBUG_FPU is not set
 CONFIG_UNWINDER_GUESS=y
 # CONFIG_RUNTIME_TESTING_MENU is not set
+CONFIG_NET=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_NETDEVICES=y
+CONFIG_VIRTIO=y
+CONFIG_VIRTIO_NET=y
+CONFIG_VIRTIO_RING=y
+CONFIG_UNIX=y
+CONFIG_UNIX_SCM=y
+CONFIG_AF_UNIX_OOB=y