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Current Path: /usr/local/VMOptimizationTools_2.69.0

usr / local / VMOptimizationTools_2.69.0 /

📁 ..
📄 LinuxUpdate.XML(647 B)
📄 SangforVMSTool(3.11 KB)
📄 SangforVMSTool.service(194 B)
📄 action_common.sh(13.34 KB)
📄 busybox_cmd_ln.sh(2.24 KB)
📄 collect_test_data.sh(1.16 KB)
📄 common_config.sh(278 B)
📄 data_test_tool.sh(16.62 KB)
📄 debian_vmconfig.sh(13.48 KB)
📁 driver
📄 guest_system_config.sh(1.82 KB)
📄 hostname_config(1 B)
📄 ipv6_network_config(94 B)
📄 log.sh(1.36 KB)
📄 mod_test.sh(3.69 KB)
📄 mod_test1.sh(914 B)
📄 net_common.sh(915 B)
📄 network_compat_flag(0 B)
📄 network_config(86 B)
📄 pwd_info_config(1 B)
📄 redhat_vmconfig.sh(17.93 KB)
📄 reset_duid_config(21 B)
📄 sangfor_guest_datareport(25.63 KB)
📄 sangfor_heartalive.sh(2.37 KB)
📄 sangfor_module_update(28.11 KB)
📄 sangfor_set_network.sh(504 B)
📄 sangfor_sfping(4.23 KB)
📄 sangfor_sshkey_gen(1.29 KB)
📄 sangfor_update_ipc_callback(5.29 KB)
📄 sangfor_vm_proxyd(3.45 KB)
📄 sangfor_vm_proxyd_r(4.4 KB)
📄 sangfor_vm_proxyd_w(1.32 KB)
📄 sangfor_vmconfig(3.55 KB)
📄 sangfor_vmconfig_common(38.34 KB)
📄 sangfor_vmconfig_ipc_callback(4.75 KB)
📄 sangfor_watchdog(3.95 KB)
📄 sfping(17.7 KB)
📄 sfping.pl(8.57 KB)
📄 startall(1.78 KB)
📄 stopall(1.11 KB)
📄 suse_vmconfig.sh(10.07 KB)
📁 tools_x64
📁 tools_x86
📄 uni_test.sh(2.59 KB)
📄 update_common_func(4.35 KB)
📄 update_common_header(4.86 KB)
📄 update_config(2.89 KB)
📄 update_install(33.63 KB)
📄 update_network.flag(1 B)
📄 virtio_nic_attr_set.sh(2.42 KB)
📄 virtio_nic_compat.sh.old1610337499(5.64 KB)
📄 vm_ip_recover.sh(16.66 KB)
📄 vm_ipc.sh(9.06 KB)
📄 vmconfig_common_func(23.11 KB)
📄 vmconfig_common_header(3.37 KB)
📄 vmconfig_config(1.02 KB)
📄 vmtools-install.sh(31.16 KB)
📄 watch_test.sh(313 B)
📄 watchdog.sh(1.39 KB)
📁 x64
📁 x86

Editing: vmconfig_common_func

#!/bin/bash

#The common file.
declare g_debian_network_cfg="/etc/network/interfaces"
declare g_debian_network_cfg_dir="/etc/network/interfaces.d"
declare g_redhat_network_cfg_dir="/etc/sysconfig/network-scripts"
declare g_network_manager_connection_dir="/etc/NetworkManager/system-connections"
declare g_suse_network_cfg_dir="/etc/sysconfig/network"
declare g_suse_routes_config_file="/etc/sysconfig/network/routes"
declare g_dns_config_file="/etc/resolv.conf"
declare g_dns_netconfig_file="/etc/resolv.conf.netconfig"
declare g_suse_netconfig_file="/etc/sysconfig/network/config"
declare g_networkmanager_config_file="/etc/NetworkManager/NetworkManager.conf"

# get the CIDR prefix from a dot-decimal netmask
# param $1: netmask. eg: 255.255.255.0
# output: CIDR prefix. eg: 24
# return: none
mask2cdr ()
{
   # Assumes there's no "255." after a non-255 byte in the mask
   local x=${1##*255.}
   set -- 0^^^128^192^224^240^248^252^254^ $(( (${#1} - ${#x})*2 )) ${x%%.*}
   x=${1%%$3*}
   echo $(( $2 + (${#x}/4) ))
}

# get the dot-decimal netmask from a CIDR prefix
# param $1: CIDR prefix. eg: 24
# output: netmask. eg: 255.255.255.0
# return: none
cdr2mask ()
{
   # Number of args to shift, 255..255, first non-255 byte, zeroes
   set -- $(( 5 - ($1 / 8) )) 255 255 255 255 $(( (255 << (8 - ($1 % 8))) & 255 )) 0 0 0
   [ $1 -gt 1 ] && shift $1 || shift
   echo ${1-0}.${2-0}.${3-0}.${4-0}
}

# 根据mac地址获取网卡名
# param $1: macaddr
get_ifname_by_mac()
{
    local macaddr=$1

ip link >/dev/null 2>&1
    if [ $? -eq 0 ];then
        ip link |grep -i -B 1 ${macaddr} |awk '{if (NR==1)print $2}'|awk -F: '{print $1}'
    fi
    return 0
}

# get ip address of interface
# param $1: ifname, eg: eth0
# output: ip address  eg:192.168.10.10
get_if_ip()
{
    local ifname=$1
    test -z "$ifname" && return 1
    ip link >/dev/null 2>&1
    if [ $? -eq 0 ];then
        ip addr show dev ${ifname} 2>/dev/null |awk '{if($1~/^inet$/)print $2}'|awk -F/ '{print $1}'
    else
        ifconfig >/dev/null 2>&1
        if [ $? -eq 0 ];then
            ifconfig ${ifname} 2>/dev/null |awk '{if($1~/^inet$/)print $2}'|awk -F: '{print $2}'
        fi
    fi
}

# 获取之后并且比较ipv6地址
# param $1: ifname, eg: eth0
# param $2: ipv6_and_prefixlen
# return 0 有相同的 1 没有相同的
get_if_ipv6_and_prefixlen()
{
    local ifname=$1
    local ipv6_and_prefixlen=$2
    local cur_ipv6_and_prefixlen=""

test -z "$ifname" && return 1
    ip link >/dev/null 2>&1
    if [ $? -eq 0 ];then
        cur_ipv6_and_prefixlen=`ip addr show dev ${ifname} 2>/dev/null |awk '{if($1~/^inet6$/)print $2}' | sed '/^fe80/d'`
    fi
    for i in $cur_ipv6_and_prefixlen
    do
        if [ x"$ipv6_and_prefixlen" == x"$i" ];then
            return 0
        fi
    done
    log_debug "ipv6:$cur_ipv6_and_prefixlen $ipv6_and_prefixlen is diff"
    return 1
}

#因为ip配置文件中只生效一个ipv6的地址，因此只获取一个ipv6地址，写入文件中
# param $1: ifname, eg: eth0
##todo:支持获取和配置多个ip
get_if_ipv6()
{
    local ifname=$1

test -z "$ifname" && return 1
    ip link >/dev/null 2>&1
    if [ $? -eq 0 ];then
        ip addr show dev ${ifname} 2>/dev/null |awk '{if($1~/^inet6$/)print $2}'|awk -F/ '{print $1}' | sed '/^fe80/d' | head -n 1
    else
        ifconfig >/dev/null 2>&1
        if [ $? -eq 0 ];then
            ifconfig ${ifname} 2>/dev/null |awk '{if($1~/^inet6$/)print $3}' |awk -F/ '{print $1}' | sed '/^fe80/d' | head -n 1
        fi
    fi
}

# get netmask of interface
# param $1: ifname, eg: eth0
# output: netmask   eg:255.255.255.0
get_if_mask()
{
    local ifname=$1
    local int_netmask=""
    test -z "$ifname" && return 1
    ip link >/dev/null 2>&1
    if [ $? -eq 0 ];then
        int_netmask=`ip addr show dev ${ifname} 2>/dev/null |awk '{if($1~/^inet$/)print $2}'|awk -F/ '{print $2}'`
        cdr2mask ${int_netmask}
    else
        ifconfig >/dev/null 2>&1
        if [ $? -eq 0 ];then
            ifconfig ${ifname} 2>/dev/null |awk '{if($1~/^inet$/)print $4}'|awk -F: '{print $2}'
        fi
    fi
}

# get prefixlen
# param $1: ifname, eg: eth0
# output: prefixlen
get_if_ipv6_prefix_len()
{
    local ifname=$1
    test -z "$ifname" && return 1
    ip link >/dev/null 2>&1
    if [ $? -eq 0 ];then
        ip addr show dev ${ifname} 2>/dev/null |awk '{if($1~/^inet6$/)print $2}' | sed '/^fe80/d' |awk -F/ '{print $2}' | head -n 1 
    else
        ifconfig >/dev/null 2>&1
        if [ $? -eq 0 ];then
            ifconfig ${ifname} 2>/dev/null |awk '{if($1~/^inet6$/)print $3}'| sed '/^fe80/d'|awk -F/ '{print $2}' | head -n 1
        fi
    fi
}

# get default gateway of interface
# param $1: ifname, eg: eth0
# output: gateway  eg: 192.168.10.1
get_if_gateway()
{
    local ifname=$1
    test -z "$ifname" && return 1
    ip route >/dev/null 2>&1
    if [ $? -eq 0 ];then
        ip route 2>/dev/null | grep default | awk -v ifname="$ifname" '{if ($5==ifname) print $3}'
    fi
}

#因为只有第一个默认网关有效所以取第一个
# get ipv6 default gateway of interface
# param $1: ifname, eg: eth0
get_if_ipv6_gateway()
{
    local ifname=$1
    test -z "$ifname" && return 1
    log_info "get $ifname ipv6 gateway"
    ip -6 route >/dev/null 2>&1
    if [ $? -eq 0 ];then
        ip -6 route 2>/dev/null | grep default | awk -v ifname="$ifname" '{if ($5==ifname) print $3}'| head -n 1 
    fi
}

# get current conneted uuid of interface
# param $1: ifname,eg:eth0
nmcli_get_connected_uuid()
{
    local ifname=$1
    local uuid=""
    test -z "$ifname" && return 1
    nmcli c list >/dev/null 2>&1
    if [ $? -eq 0 ];then
        uuid=`nmcli -f UUID,DEVICES c status |awk -v ifname="$ifname" '{if ($2==ifname) print $1}'`
    else
        uuid=`nmcli -f UUID,DEVICE  c show --active |awk -v ifname="$ifname" '{if ($2==ifname) print $1}'`
    fi
    echo $uuid
}

# get current conneted config id of interface by nmcli
# param $1: ifname,eg:eth0
# param $2: ip_type
# output: method(manual|auto|"")
nmcli_get_config_ip_method()
{
    local ifname=$1
    local ip_type=$2
    local uuid=""
    local ip_method=""

test -z "$ifname" && return 1
    uuid=`nmcli_get_connected_uuid "$ifname"`
    test -z "$uuid" && return 1

if [ x"$ip_type" == x"ipv4" ];then
        ip_method="ipv4.method"
    elif [ x"$ip_type" == x"ipv6" ];then
        ip_method="ipv6.method"
    else
        log_error "ip_type $ip_type is not ipv4 or ipv6"
        return 1
    fi

nmcli c list >/dev/null 2>&1
    if [ $? -eq 0 ];then
        method=`nmcli  c list uuid "$uuid" 2>/dev/null | grep "${ip_method}" |awk -F: '{print $2}'`
    else
        method=`nmcli c show uuid "$uuid" 2>/dev/null | grep "${ip_method}" |awk -F: '{print $2}'`
    fi
    echo $method
}

# get current config ip of interface by nmcli
# param $1: ifname,eg:eth0
# param $2: ip_type
# output: ipaddr,eg. 192.168.100.10
nmcli_get_config_ip()
{
    local ifname=$1
    local ip_type=$2
    local uuid=""
    local ipaddr_type=""

test -z "$ifname" && return 1
    uuid=`nmcli_get_connected_uuid "$ifname"`
    test -z "$uuid" && return 1

ipaddr_type=`trans_ipaddr_type "$ip_type"`
    if [ x"$ipaddr_type" == x"" ];then
        log_error "no ip_type $ip_type ipaddr_type $ipaddr_type"
        return 1
    fi

nmcli c list >/dev/null 2>&1
    if [ $? -eq 0 ];then
        addresses_value=`nmcli  c list uuid "$uuid" 2>/dev/null | grep "${ipaddr_type}" | awk '{print $2}'`
        ip=`echo $addresses_value | awk -F "ip =" '{print $2}'|awk -F "/"  '{print $1}'`
        # { ip = 192.168.1.10/24, gw = 192.168.1.1 }; { ip = 192.168.2.10/24, gw = 192.168.2.1 }
    else
        addresses_value=`nmcli c show uuid "$uuid" 2>/dev/null | grep "${ipaddr_type}" | awk '{print $2}'`
        # 192.168.50.12/24, 192.168.51.12/24
        ip_cdr=`echo $addresses_value |awk -F "," '{print $1}'`
        ip=`echo "$ip_cdr" | awk -F "/" '{print $1}'`
    fi
    echo $ip
}

# get current config ip of interface by nmcli
# param $1: ifname,eg:eth0
# output: netmask,eg. 255.255.255.0
nmcli_get_config_mask()
{
    local ifname=$1
    local ip_type=$2
    local uuid=""
    local ipaddr_type=""

test -z "$ifname" && return 1
    uuid=`nmcli_get_connected_uuid "$ifname"`
    test -z "$uuid" && return 1

ipaddr_type=`trans_ipaddr_type "$ip_type"`
    if [ x"$ipaddr_type" == x"" ];then
        log_error "no ip_type $ip_type ipaddr_type $ipaddr_type"
        return 1
    fi

nmcli c list >/dev/null 2>&1
    if [ $? -eq 0 ];then
        addresses_value=`nmcli c list uuid "$uuid" 2>/dev/null | grep "${ipaddr_type}" | awk '{print $2}'`
        # { ip = 192.168.1.10/24, gw = 192.168.1.1 }; { ip = 192.168.2.10/24, gw = 192.168.2.1 }
        ip_cdr=`echo $addresses_value |  awk -F "ip =" '{print $2}'|awk -F "," '{print $1}'`
    else
        addresses_value=`nmcli c show uuid "$uuid" 2>/dev/null | grep "${ipaddr_type}" | awk '{print $2}'`
        # 192.168.50.12/24, 192.168.51.12/24
        ip_cdr=`echo $addresses_value |awk -F "," '{print $1}'`
    fi

if ! test -z "$ip_cdr";then
        cdr=`echo "$ip_cdr" | awk -F "/" '{print $2}'`
        if [ x"$ip_type" == x"ipv4" ];then
            cdr2mask $cdr
        elif [ x"$ip_type" == x"ipv6" ];then
            echo $cdr
        fi
    fi
}

# get current config gateway of interface by nmcli
# param $1: ifname,eg:eth0
# output: gateway,eg. 192.168.100.1
# return none
nmcli_get_config_gateway()
{
    local ifname=$1
    local ip_type=$2
    local uuid=""
    local ip_gateway_type=""

test -z "$ifname" && return 1
    uuid=`nmcli_get_connected_uuid "$ifname"`
    test -z "$uuid" && return 1
    if [ x"$ip_type" == x"ipv4" ];then
        ip_gateway_type="ipv4.gateway"
    elif [ x"$ip_type" == x"ipv6" ];then
        ip_gateway_type="ipv6.gateway"
    else
        log_error "ip_type $ip_type is not ipv4 or ipv6"
        return 1
    fi

nmcli c list >/dev/null 2>&1
    if [ $? -eq 0 ];then
        addresses_value=`nmcli  c list uuid "$uuid" 2>/dev/null | grep "${ip_gateway_type}" | awk '{print $2}'`
        # { ip = 192.168.1.10/24, gw = 192.168.1.1 }; { ip = 192.168.2.10/24, gw = 192.168.2.1 }
        gateway=`echo $addresses_value | awk -F "gw =" '{print $2}'|awk -F "}"  '{print $1}'`
    else
        gateway=`nmcli c show uuid "$uuid"  2>/dev/null | grep "${ip_gateway_type}" | awk '{print $2}'`
    fi
    if [ x"$gateway" == x"--" ];then
        gateway=""
    fi
    echo $gateway
}

# check dns is already exist in config
# param $1: dns
# return 0(exist),1(not exist)
check_dns_exist()
{
    local dns=$1
    local dns_num=0
    for i in `cat /etc/resolv.conf | grep "^\s*nameserver"|awk '{print $2}'`
    do
        dns_num=`expr $dns_num + 1`
        if [ x"$dns" == x"$i" ];then
            log_debug "found dns:$dns"
            return 0
        fi
        if [ ${dns_num} -gt 3 ];then
            log_debug "dns_num gt 3"
            break
        fi
    done
    log_debug "not found dns:$dns"
    return 1
}

# 判断ip类型，为获取ip_net与ip6_net信息
# param $1: ip类型 ipv6 or ipv4
# output: ip_net or ip6_net
trans_ip_type()
{
    local ip_type=$1
    local ip_tmp=""
    if [ x"$ip_type" == x"ipv4" ];then
        ip_tmp="ip_net"
    elif [ x"$ip_type" == x"ipv6" ];then     
        ip_tmp="ip6_net"
    else
        ip_tmp=""
    fi
    echo $ip_tmp
}

# 判断ip类型，为命令获取对应类型地址所赋值
# param $1: ip类型 ipv6 or ipv4
# output: ipv4.addresses or ipv6.addresses
trans_ipaddr_type()
{
    local ip_type=$1
    local ipaddr=""
    if [ x"$ip_type" == x"ipv4" ];then
        ipaddr="ipv4.addresses"
    elif [ x"$ip_type" == x"ipv6" ];then     
        ipaddr="ipv6.addresses"
    else
        ipaddr=""
    fi
    echo $ipaddr
}

#因为添加了ipv6的信息格式inet6,使用grep查找inet时不加空格会使ipv6的也匹配上，所以空格不能取消，echo输出也必须加双引号
# param $1: ip类型 ipv6 or ipv4
# output: inet or inet6
trans_inet_type()
{
    local ip_type=$1
    local inet=""
    if [ x"$ip_type" == x"ipv4" ];then
        inet="inet "
    elif [ x"$ip_type" == x"ipv6" ];then     
        inet="inet6 "
    else
        inet=""
    fi
    echo "$inet"
}

#检测ip_type是否为ipv4 or ipv6
# param $1: ip类型 ipv6 or ipv4
# return 0（是ipv4 or ipv6类型）,1(not)
check_iptype_is_ipv4_or_ipv6()
{
    local ip_type=$1
    if [ x"$ip_type" == x"ipv4" ] || [ x"$ip_type" == x"ipv6" ];then
        return 0
    fi
    return 1
}

# get current dns num
# param: none
# output: dns num
# return: none
get_sys_dns_num()
{
    cat /etc/resolv.conf  |grep "^\s*nameserver" | wc -l
}

# remove quotation mark of str
# param$1: str
# output: str after remove quotation mark
# return: none
remove_quotation_mark()
{
    local str=$1
    if ! test -z "$str";then
        str=`echo $str | sed $'s/\'//g'`
        str=`echo $str | sed $'s/"//g'`
    fi
    echo $str
}

# get value from config file
# key value format: key=value
# param $1: config file
# param $2: key
# output: value of key
# return: none
get_value_from_config()
{
    local file=$1
    local key=$2
    #grep -w表示整个字符串的精确匹配，该字符串可以包含数字、字符、下划线，不同字符串之间以非数字、字符、下划线分割，目的是为区分IPADDR和IPADDR_0
    value=`cat "$file" |grep -w "^\s*$key" |awk  -F= '{if (NR==1) print $2}'`
    if ! test -z "$value";then
        value=`remove_quotation_mark "$value"`
    fi
    echo $value
}

is_network_manager_enable()
{
    if [ ! -e "$g_networkmanager_config_file" ];then
        return 1
    fi
    enable=`cat $g_networkmanager_config_file | grep "managed"|awk -F= '{print $2}'`
    if [ x"$enable" == x"true" ];then
        return 0
    else
        return 1
    fi
}

enable_network_manager()
{
    if test -f "$g_networkmanager_config_file";then
        sed -i '/^\s*managed/s/false/true/' "$g_networkmanager_config_file"
    fi
}

disable_network_manager()
{
    if test -f "$g_networkmanager_config_file";then
        sed -i '/^\s*managed/s/true/false/' "$g_networkmanager_config_file"
    fi
}

# 判断ip与网关等信息是否改变
# param $1: ip_type,eg:ipv4 or ipv6
# param $2: ifname,eg:eth0
# param $3: ipaddr,eg:192.168.100.100
# param $4: netmask,eg:255.255.255.0
# param $5: gateway,eg:192.168.100.1
# return 0(changed),1(not changed)
check_if_config_changed()
{
    local ip_type=$1
    local ifname=$2
    local ip=$3
    local mask=$4
    local gateway=$5
    local cur_ip=""
    local cur_mask=""
    local cur_gateway=""

if [ x"$ip" == x"" ];then
        log_debug "$ip_type ip:$ip is none"
        return 1
    fi

if [ x"$ip_type" == x"ipv4" ];then
        cur_ip=`get_if_ip $ifname`
        if [ x"$ip" != x"$cur_ip" ];then
            log_debug "$ifname $ip_type ip:$ip $cur_ip is diff"
            return 0
        fi
        if [ x"$mask" != x"" ];then
            cur_mask=`get_if_mask $ifname`
            if [ x"$mask" != x"$cur_mask" ];then
                log_debug "$ifname $ip_type mask:$mask $cur_mask is diff"
                return 0
            fi
        fi
        if [ x"$gateway" != x"" ];then
            cur_gateway=`get_if_gateway $ifname`
            if [ x"$gateway" != x"$cur_gateway" ];then
                log_debug "$ifname $ip_type gateway:$gateway $cur_gateway is diff"
                return 0
            fi
        fi
    elif [ x"$ip_type" == x"ipv6" ]; then
        get_if_ipv6_and_prefixlen "$ifname" "${ip}/${mask}"
        check_cur_ip_exist=$?
        if [ ${check_cur_ip_exist} -eq  1 ];then
            log_debug "$ifname $ip_type is diff"
            return 0
        fi
        if [ x"$gateway" != x"" ];then
            cur_gateway=`get_if_ipv6_gateway $ifname`
            if [ x"$gateway" != x"$cur_gateway" ];then
                log_debug "$ifname $ip_type gateway:$gateway $cur_gateway is diff"
                return 0
            fi
        fi
    else
        log_error "$ifname ip_type $ip_type is not ipv4 or ipv6"
    fi
    log_debug "$ifname network status not change"
    return 1
}

#更新dns
change_update_linux_dns()
{
    local dns1=$1
    local dns2=$2
    local cfg_dns_file=$3
    local file_dns1=""
    local file_dns2=""

if [ x"$dns1" != x"" ];then
        file_dns1=`cat $cfg_dns_file | grep "$dns1"`
        if [ x"$file_dns1" != x"" ]; then
            sed -i "/$dns1/d" $cfg_dns_file
        fi
        change_linux_dns "$dns1" "$cfg_dns_file"
    fi
    if [ x"$dns2" != x"" ];then
        file_dns2=`cat $cfg_dns_file | grep "$dns2"`
        if [ x"$file_dns2" != x"" ]; then
            sed -i "/$dns2/d" $cfg_dns_file
        fi
        change_linux_dns "$dns2" "$cfg_dns_file"
    fi
    return 0
}

# acmp端提出的需求为仅修改dns的下直接覆盖系统原有的所有DNS
# param $1 dns1
# return 0(success),1(fail)
change_linux_dns()
{
    local dns=$1
    local cfg_dns_file=$2
    local dns_num=0
    local first_dns=""
    local orig_dns_list=""

check_dns_num
    if [ $? -eq 1 ]; then
        first_dns=`cat $cfg_dns_file | grep "^\s*nameserver" | head -n 1`
        sed -i "/$first_dns/d" $cfg_dns_file
    fi
    echo "nameserver $dns" >> $cfg_dns_file
    return 0
}

# 查看dns配置文件中的dns数有几个
check_dns_num()
{
    local dns_num=0
    for i in `cat /etc/resolv.conf | grep "^\s*nameserver" | awk '{print $2}'`
    do
        dns_num=`expr $dns_num + 1`
    done
    if [ $dns_num -ge 3 ];then
        return 1
    fi
    return 0
}

#检测ipv4的地址等合法性
# param $1: inet address,eg: 192.168.10.10
# return 0(valid),1(not valid)
is_valid_inet_address() {
    if [ $# -ne 1 ];then
        return 1
    fi
    addr=$1
    if [[ $addr =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
        field1=$(echo $addr|cut -d. -f1)
        field2=$(echo $addr|cut -d. -f2)
        field3=$(echo $addr|cut -d. -f3)
        field4=$(echo $addr|cut -d. -f4)
        if [ $field1 -le 255 -a $field2 -le 255 -a $field3 -le 255 -a $field4 -le 255 ]; then
            return 0
        else
            return 1
        fi
    else
        return 1
    fi
}

# brief 检查是否是有效的网卡mac地址,例如 FE:FC:FE:66:82:31
# return 0(valid),1(not valid)
is_valid_mac_address() {
    if [ $# -ne 1 ];then
        return 1
    fi
    macaddr=$1
    if [[ $macaddr =~ ^[0-9a-fA-F]{2}(:[0-9a-fA-F]{2}){5}$ ]]; then
        return 0
    fi

return 1
}

#判断ipv6的地址是否合法
is_valid_inet6_address()
{
    if [ $# -ne 1 ];then
        return 1
    fi
    local addr=$1
    local tmp_addr=$1
    local old_ipv6_list=""
    local ipv6_ipv4=""
    local ipv4=""
    local ipv6=$1
    local num=0
    local ipv6_all_num=0
    local three_str=""
    local space=""

#过滤掉中间有空格的地址
    space=`echo "$addr" | grep " "`
    if [ x"$space" != x"" ];then
        return 1
    fi

#过滤掉"::"除一个或者0个之外
    num=`echo "$addr" |grep -o "::" |wc -l`
    if [ $num -ne 1 ] && [ $num -ne 0 ];then
        return 1
    elif [ $num -eq 1 ];then
       ipv6_all_num=1
    fi

#过滤掉有一个或者多个":::"
    three_str=`echo "$addr" | grep ":::"`
    if [ x"$three_str" != x"" ];then
        return 1
    fi

#判断2001::1:192.168.10.11是否为内嵌ipv4，如果是则截取最后一个":"之后的192.168.10.11，并判断是否符合v4
    ipv6_ipv4=`echo "$addr" | awk -F '[:]' '{print $NF}'`
    is_valid_inet_address "$ipv6_ipv4"
    if [ $? -eq 0 ];then
        #如果符合，将字段数置为2
        ipv6_all_num=2
        #将2001::1截取出来
        ipv6=`echo $tmp_addr | sed "s/:$ipv6_ipv4//g"`
    fi

#":"切割，判断每一段是否符合[0-9a-fA-F]{1,4}
    old_ipv6_list=`echo "$ipv6" | sed "s/:/ /g"`
    for get_ipv6 in $old_ipv6_list;do
        #判断字段总和数等于8，即过滤字段数大于8的ipv6地址
        if [[ $get_ipv6  =~ ^[0-9a-fA-F]{1,4}$ ]];then
            ipv6_all_num=`expr $ipv6_all_num + 1`
        else
            return 1
        fi
    done

if [ $num -eq 0 ] && [ $ipv6_all_num -ne 8 ];then
        return 1
    elif [ $num -eq 1 ] && [ $ipv6_all_num -gt 8 ];then
        return 1
    fi
    return 0
}

is_valid_inet6_prefixlen()
{
    if [ $# -ne 1 ];then
        return 1
    fi
    prefixlen=$1
    if [ $prefixlen -le 128 ] && [ $prefixlen -gt 0 ]; then
        return 0
    fi
    return 1

}

# 将下发配置中的dns和网卡中的dns进行拼接取前三个
joint_config_net_dns()
{
    local config_dns_list=$1
    local net_dns_list=$2
    local joint_dns_list=""
    local three_dns=""

test -z "$config_dns_list" && return 1
    if [ x"$net_dns_list" == x"" ];then
        echo "$config_dns_list"
        return 0
    fi

joint_dns_list="$config_dns_list $net_dns_list"
    log_info "joint_dns_list $joint_dns_list"

#获取前面三个dns
    three_dns=`get_three_dns "$joint_dns_list"`
    echo $three_dns
    return 0
}

#判断dns是否为空并且拼接
joint_dns()
{
    local dns1=$1
    local dns2=$2
    local dns_list=""

for dns in $@; do
        if [ x"$dns" != x"" ];then
            dns_list="$dns_list $dns"
        fi
    done
    #去掉字符串首尾空格(如果不去掉，cut用法不会过滤掉空格，取不到想要的字符串)
    echo "$dns_list" | awk '{gsub(/^\s+|\s+$/, "");print}'
}

#获取前面三个dns
get_three_dns()
{
    local all_ifname_dns=$1
    local three_dns=""

log_info "all_ifname_dns $all_ifname_dns"
    test -z "$all_ifname_dns" && return 1
    three_dns=`echo $all_ifname_dns | cut -d " " -f 1-3`
     #去掉字符串首尾空格(如果不去掉，cut用法不会过滤掉空格，取不到想要的字符串)
    echo "$three_dns" | awk '{gsub(/^\s+|\s+$/, "");print}'
}

#更新linux的dns
update_linux_dns()
{
    local dns_list=$1
    local cfg_dns_file=$2

test -z "$dns_list" && return 1
    test -z "$cfg_dns_file" && return 1

check_resolv_cfg_dns "$dns_list"
    if [ $? -eq 0 ];then
        log_info "config and resolv dns is same,dns:$dns_list"
        return 1
    fi

#删除网卡中全部的dns
    sed -i "/nameserver/d" $cfg_dns_file
    for dns in $dns_list; do
        is_valid_ip_address "$dns"
        if [ $? -eq 0 ];then
            echo "nameserver $dns" >> $cfg_dns_file
        else
            log_error "dns:$dns is not vaild"
        fi
    done

# Ubuntu系统中如果文件/etc/resolvconf/resolv.conf.d/base存在，则写入此文件中，
    # 需要执行命令才会写入/etc/resolv.conf文件
    if [ x"$cfg_dns_file" != x"$g_dns_config_file" ];then
        resolvconf -u >/dev/null 2>&1
    fi
}

#判断dns配置中的dns与配置中的dns是否相同
check_resolv_cfg_dns()
{
    local config_dns_list=$1
    local resolv_dns_list=""
    local num=1
    local resolv_dns=""

resolv_dns_list=`cat $g_dns_config_file | grep -w nameserver`
    for config_dns in $config_dns_list; do
        resolv_dns=`echo "$resolv_dns_list" | awk '{if(NR=="'"$num"'"){print $2}}'`
        if [ x"$resolv_dns" != x"$config_dns" ];then
            log_info "config_dns:$config_dns and resolv_dns:$resolv_dns is diff"
            return 1
        fi
        if [ $num -eq 3 ];then
            return 0
        fi
        num=`expr $num + 1`
    done

return 0
}

#判断下ip的合法性
is_valid_ip_address()
{
    local ip=$1
    local ip_type=""

test -z "$ip" && return 1

is_valid_inet_address "$ip"
    if [ $? -eq 0 ];then
        return 0
    fi

is_valid_inet6_address "$ip"
    if [ $? -eq 0 ];then
        return 0
    fi
    log_error "ip:$ip is not valid"
    return 1
}

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