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networkctl: optionally show link statistics

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This commit is contained in:
Yu Watanabe 2019-05-25 00:37:48 +09:00
parent c095e5b02b
commit a459b24f7e
2 changed files with 73 additions and 3 deletions
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11
man/networkctl.xml
View File

@ -58,6 +58,17 @@
</listitem>
</varlistentry>
<varlistentry>
<term>
<option>-s</option>
<option>--stats</option>
</term>
<listitem>
<para>Show link statistics with <command>status</command>.</para>
</listitem>
</varlistentry>
<xi:include href="standard-options.xml" xpointer="help" />
<xi:include href="standard-options.xml" xpointer="version" />
<xi:include href="standard-options.xml" xpointer="no-legend" />

65
src/network/networkctl.c
View File

@ -45,6 +45,7 @@
static PagerFlags arg_pager_flags = 0;
static bool arg_legend = true;
static bool arg_all = false;
static bool arg_stats = false;
static char *link_get_type_string(unsigned short iftype, sd_device *d) {
const char *t, *devtype;
@ -109,9 +110,16 @@ typedef struct LinkInfo {
uint32_t tx_queues;
uint32_t rx_queues;
union {
struct rtnl_link_stats64 stats64;
struct rtnl_link_stats stats;
};
bool has_mac_address:1;
bool has_tx_queues:1;
bool has_rx_queues:1;
bool has_stats64:1;
bool has_stats:1;
} LinkInfo;
static int link_info_compare(const LinkInfo *a, const LinkInfo *b) {
@ -173,6 +181,11 @@ static int decode_link(sd_netlink_message *m, LinkInfo *info, char **patterns) {
sd_netlink_message_read_u32(m, IFLA_NUM_TX_QUEUES, &info->tx_queues) >= 0 &&
info->tx_queues > 0;
if (sd_netlink_message_read(m, IFLA_STATS64, sizeof info->stats64, &info->stats64) >= 0)
info->has_stats64 = true;
else if (sd_netlink_message_read(m, IFLA_STATS, sizeof info->stats, &info->stats) >= 0)
info->has_stats = true;
return 1;
}
@ -799,6 +812,42 @@ static int dump_list(Table *table, const char *prefix, char **l) {
return 0;
}
#define DUMP_STATS_ONE(name, val_name) \
r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); \
if (r < 0) \
return r; \
r = table_add_cell_full(table, NULL, TABLE_STRING, name ":", \
SIZE_MAX, SIZE_MAX, 0, 100, 0); \
if (r < 0) \
return r; \
r = table_add_cell(table, NULL, info->has_stats64 ? TABLE_UINT64 : TABLE_UINT32, \
info->has_stats64 ? (void*) &info->stats64.val_name : (void*) &info->stats.val_name); \
if (r < 0) \
return r;
static int dump_statistics(Table *table, const LinkInfo *info) {
int r;
if (!arg_stats)
return 0;
if (!info->has_stats64 && !info->has_stats)
return 0;
DUMP_STATS_ONE("Rx Packets", rx_packets);
DUMP_STATS_ONE("Tx Packets", tx_packets);
DUMP_STATS_ONE("Rx Bytes", rx_bytes);
DUMP_STATS_ONE("Tx Bytes", tx_bytes);
DUMP_STATS_ONE("Rx Errors", rx_errors);
DUMP_STATS_ONE("Tx Errors", tx_errors);
DUMP_STATS_ONE("Rx Dropped", rx_dropped);
DUMP_STATS_ONE("Tx Dropped", tx_dropped);
DUMP_STATS_ONE("Multicast Packets", multicast);
DUMP_STATS_ONE("Collisions", collisions);
return 0;
}
static int link_status_one(
sd_netlink *rtnl,
sd_hwdb *hwdb,
@ -1061,6 +1110,10 @@ static int link_status_one(
if (r < 0)
return r;
r = dump_statistics(table, info);
if (r < 0)
return r;
return table_print(table, NULL);
}
@ -1415,8 +1468,9 @@ static int help(void) {
" --version Show package version\n"
" --no-pager Do not pipe output into a pager\n"
" --no-legend Do not show the headers and footers\n"
" -a --all Show status for all links\n\n"
"Commands:\n"
" -a --all Show status for all links\n"
" -s --stats Show detailed link statics\n"
"\nCommands:\n"
" list [PATTERN...] List links\n"
" status [PATTERN...] Show link status\n"
" lldp [PATTERN...] Show LLDP neighbors\n"
@ -1444,6 +1498,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
{ "no-legend", no_argument, NULL, ARG_NO_LEGEND },
{ "all", no_argument, NULL, 'a' },
{ "stats", no_argument, NULL, 's' },
{}
};
@ -1452,7 +1507,7 @@ static int parse_argv(int argc, char *argv[]) {
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "ha", options, NULL)) >= 0) {
while ((c = getopt_long(argc, argv, "has", options, NULL)) >= 0) {
switch (c) {
@ -1474,6 +1529,10 @@ static int parse_argv(int argc, char *argv[]) {
arg_all = true;
break;
case 's':
arg_stats = true;
break;
case '?':
return -EINVAL;