qga: add network stats to guest-network-get-interfaces
we can get the network interface statistics inside a virtual machine by guest-network-get-interfaces command. it is very useful for us tomonitor and analyze network traffic. Signed-off-by: ZhiPeng Lu <lu.zhipeng@zte.com.cn> * don't rely on sizeof(wchar[]) for wchar[] indexing * avoid camelCase variable names * fix up getline() usage * condensed commit subject line Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
ZhiPeng Lu
Michael Roth
parent
105fad6bb2
commit
53f9fcb263
@ -1643,6 +1643,67 @@ guest_find_interface(GuestNetworkInterfaceList *head,
|
||||
return head;
|
||||
}
|
||||
|
||||
static int guest_get_network_stats(const char *name,
|
||||
GuestNetworkInterfaceStat *stats)
|
||||
{
|
||||
int name_len;
|
||||
char const *devinfo = "/proc/net/dev";
|
||||
FILE *fp;
|
||||
char *line = NULL, *colon;
|
||||
size_t n = 0;
|
||||
fp = fopen(devinfo, "r");
|
||||
if (!fp) {
|
||||
return -1;
|
||||
}
|
||||
name_len = strlen(name);
|
||||
while (getline(&line, &n, fp) != -1) {
|
||||
long long dummy;
|
||||
long long rx_bytes;
|
||||
long long rx_packets;
|
||||
long long rx_errs;
|
||||
long long rx_dropped;
|
||||
long long tx_bytes;
|
||||
long long tx_packets;
|
||||
long long tx_errs;
|
||||
long long tx_dropped;
|
||||
char *trim_line;
|
||||
trim_line = g_strchug(line);
|
||||
if (trim_line[0] == '\0') {
|
||||
continue;
|
||||
}
|
||||
colon = strchr(trim_line, ':');
|
||||
if (!colon) {
|
||||
continue;
|
||||
}
|
||||
if (colon - name_len == trim_line &&
|
||||
strncmp(trim_line, name, name_len) == 0) {
|
||||
if (sscanf(colon + 1,
|
||||
"%lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld %lld",
|
||||
&rx_bytes, &rx_packets, &rx_errs, &rx_dropped,
|
||||
&dummy, &dummy, &dummy, &dummy,
|
||||
&tx_bytes, &tx_packets, &tx_errs, &tx_dropped,
|
||||
&dummy, &dummy, &dummy, &dummy) != 16) {
|
||||
continue;
|
||||
}
|
||||
stats->rx_bytes = rx_bytes;
|
||||
stats->rx_packets = rx_packets;
|
||||
stats->rx_errs = rx_errs;
|
||||
stats->rx_dropped = rx_dropped;
|
||||
stats->tx_bytes = tx_bytes;
|
||||
stats->tx_packets = tx_packets;
|
||||
stats->tx_errs = tx_errs;
|
||||
stats->tx_dropped = tx_dropped;
|
||||
fclose(fp);
|
||||
g_free(line);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
fclose(fp);
|
||||
g_free(line);
|
||||
g_debug("/proc/net/dev: Interface '%s' not found", name);
|
||||
return -1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Build information about guest interfaces
|
||||
*/
|
||||
@ -1659,6 +1720,7 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
|
||||
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
|
||||
GuestNetworkInterfaceList *info;
|
||||
GuestIpAddressList **address_list = NULL, *address_item = NULL;
|
||||
GuestNetworkInterfaceStat *interface_stat = NULL;
|
||||
char addr4[INET_ADDRSTRLEN];
|
||||
char addr6[INET6_ADDRSTRLEN];
|
||||
int sock;
|
||||
@ -1778,7 +1840,17 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
|
||||
|
||||
info->value->has_ip_addresses = true;
|
||||
|
||||
|
||||
if (!info->value->has_statistics) {
|
||||
interface_stat = g_malloc0(sizeof(*interface_stat));
|
||||
if (guest_get_network_stats(info->value->name,
|
||||
interface_stat) == -1) {
|
||||
info->value->has_statistics = false;
|
||||
g_free(interface_stat);
|
||||
} else {
|
||||
info->value->statistics = interface_stat;
|
||||
info->value->has_statistics = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
freeifaddrs(ifap);
|
||||
|
||||
@ -1153,6 +1153,44 @@ out:
|
||||
}
|
||||
#endif
|
||||
|
||||
#define INTERFACE_PATH_BUF_SZ 512
|
||||
|
||||
static DWORD get_interface_index(const char *guid)
|
||||
{
|
||||
ULONG index;
|
||||
DWORD status;
|
||||
wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
|
||||
snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
|
||||
wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
|
||||
status = GetAdapterIndex (wbuf, &index);
|
||||
if (status != NO_ERROR) {
|
||||
return (DWORD)~0;
|
||||
} else {
|
||||
return index;
|
||||
}
|
||||
}
|
||||
static int guest_get_network_stats(const char *name,
|
||||
GuestNetworkInterfaceStat *stats)
|
||||
{
|
||||
DWORD if_index = 0;
|
||||
MIB_IFROW a_mid_ifrow;
|
||||
memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
|
||||
if_index = get_interface_index(name);
|
||||
a_mid_ifrow.dwIndex = if_index;
|
||||
if (NO_ERROR == GetIfEntry(&a_mid_ifrow)) {
|
||||
stats->rx_bytes = a_mid_ifrow.dwInOctets;
|
||||
stats->rx_packets = a_mid_ifrow.dwInUcastPkts;
|
||||
stats->rx_errs = a_mid_ifrow.dwInErrors;
|
||||
stats->rx_dropped = a_mid_ifrow.dwInDiscards;
|
||||
stats->tx_bytes = a_mid_ifrow.dwOutOctets;
|
||||
stats->tx_packets = a_mid_ifrow.dwOutUcastPkts;
|
||||
stats->tx_errs = a_mid_ifrow.dwOutErrors;
|
||||
stats->tx_dropped = a_mid_ifrow.dwOutDiscards;
|
||||
return 0;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
|
||||
{
|
||||
IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
|
||||
@ -1160,6 +1198,7 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
|
||||
GuestNetworkInterfaceList *head = NULL, *cur_item = NULL;
|
||||
GuestIpAddressList *head_addr, *cur_addr;
|
||||
GuestNetworkInterfaceList *info;
|
||||
GuestNetworkInterfaceStat *interface_stat = NULL;
|
||||
GuestIpAddressList *address_item = NULL;
|
||||
unsigned char *mac_addr;
|
||||
char *addr_str;
|
||||
@ -1239,6 +1278,17 @@ GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
|
||||
info->value->has_ip_addresses = true;
|
||||
info->value->ip_addresses = head_addr;
|
||||
}
|
||||
if (!info->value->has_statistics) {
|
||||
interface_stat = g_malloc0(sizeof(*interface_stat));
|
||||
if (guest_get_network_stats(addr->AdapterName,
|
||||
interface_stat) == -1) {
|
||||
info->value->has_statistics = false;
|
||||
g_free(interface_stat);
|
||||
} else {
|
||||
info->value->statistics = interface_stat;
|
||||
info->value->has_statistics = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
WSACleanup();
|
||||
out:
|
||||
|
||||
@ -642,6 +642,38 @@
|
||||
'ip-address-type': 'GuestIpAddressType',
|
||||
'prefix': 'int'} }
|
||||
|
||||
##
|
||||
# @GuestNetworkInterfaceStat:
|
||||
#
|
||||
# @rx-bytes: total bytes received
|
||||
#
|
||||
# @rx-packets: total packets received
|
||||
#
|
||||
# @rx-errs: bad packets received
|
||||
#
|
||||
# @rx-dropped: receiver dropped packets
|
||||
#
|
||||
# @tx-bytes: total bytes transmitted
|
||||
#
|
||||
# @tx-packets: total packets transmitted
|
||||
#
|
||||
# @tx-errs: packet transmit problems
|
||||
#
|
||||
# @tx-dropped: dropped packets transmitted
|
||||
#
|
||||
# Since: 2.11
|
||||
##
|
||||
{ 'struct': 'GuestNetworkInterfaceStat',
|
||||
'data': {'rx-bytes': 'uint64',
|
||||
'rx-packets': 'uint64',
|
||||
'rx-errs': 'uint64',
|
||||
'rx-dropped': 'uint64',
|
||||
'tx-bytes': 'uint64',
|
||||
'tx-packets': 'uint64',
|
||||
'tx-errs': 'uint64',
|
||||
'tx-dropped': 'uint64'
|
||||
} }
|
||||
|
||||
##
|
||||
# @GuestNetworkInterface:
|
||||
#
|
||||
@ -651,12 +683,16 @@
|
||||
#
|
||||
# @ip-addresses: List of addresses assigned to @name
|
||||
#
|
||||
# @statistics: various statistic counters related to @name
|
||||
# (since 2.11)
|
||||
#
|
||||
# Since: 1.1
|
||||
##
|
||||
{ 'struct': 'GuestNetworkInterface',
|
||||
'data': {'name': 'str',
|
||||
'*hardware-address': 'str',
|
||||
'*ip-addresses': ['GuestIpAddress'] } }
|
||||
'*ip-addresses': ['GuestIpAddress'],
|
||||
'*statistics': 'GuestNetworkInterfaceStat' } }
|
||||
|
||||
##
|
||||
# @guest-network-get-interfaces:
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user