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networkctl: do not show zero maximum MTU

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This commit is contained in:
Yu Watanabe 2019-05-31 03:30:31 +09:00 committed by Zbigniew Jędrzejewski-Szmek
parent 9e90465539
commit c06ff86e25
1 changed files with 18 additions and 12 deletions
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30
src/network/networkctl.c
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@ -110,7 +110,6 @@ typedef struct LinkInfo {
uint32_t rx_queues;
bool has_mac_address:1;
bool has_mtu:1;
bool has_tx_queues:1;
bool has_rx_queues:1;
} LinkInfo;
@ -162,14 +161,9 @@ static int decode_link(sd_netlink_message *m, LinkInfo *info, char **patterns) {
sd_netlink_message_read_ether_addr(m, IFLA_ADDRESS, &info->mac_address) >= 0 &&
memcmp(&info->mac_address, &ETHER_ADDR_NULL, sizeof(struct ether_addr)) != 0;
info->has_mtu =
sd_netlink_message_read_u32(m, IFLA_MTU, &info->mtu) >= 0 &&
info->mtu > 0;
if (info->has_mtu) {
(void) sd_netlink_message_read_u32(m, IFLA_MIN_MTU, &info->min_mtu);
(void) sd_netlink_message_read_u32(m, IFLA_MAX_MTU, &info->max_mtu);
}
(void) sd_netlink_message_read_u32(m, IFLA_MTU, &info->mtu);
(void) sd_netlink_message_read_u32(m, IFLA_MIN_MTU, &info->min_mtu);
(void) sd_netlink_message_read_u32(m, IFLA_MAX_MTU, &info->max_mtu);
info->has_rx_queues =
sd_netlink_message_read_u32(m, IFLA_NUM_RX_QUEUES, &info->rx_queues) >= 0 &&
@ -988,15 +982,27 @@ static int link_status_one(
return r;
}
if (info->has_mtu) {
if (info->mtu > 0) {
char min_str[DECIMAL_STR_MAX(uint32_t)], max_str[DECIMAL_STR_MAX(uint32_t)];
xsprintf(min_str, "%" PRIu32, info->min_mtu);
xsprintf(max_str, "%" PRIu32, info->max_mtu);
r = table_add_cell(table, NULL, TABLE_EMPTY, NULL);
if (r < 0)
return r;
r = table_add_cell_full(table, NULL, TABLE_STRING, "MTU:", SIZE_MAX, SIZE_MAX, 0, 100, 0);
if (r < 0)
return r;
r = table_add_cell_stringf(table, NULL, "%" PRIu32 " (Minimum: %" PRIu32 ", Maximum: %" PRIu32 ")",
info->mtu, info->min_mtu, info->max_mtu);
r = table_add_cell_stringf(table, NULL, "%" PRIu32 "%s%s%s%s%s%s%s",
info->mtu,
info->min_mtu > 0 || info->max_mtu > 0 ? " (" : "",
info->min_mtu > 0 ? "Minimum: " : "",
info->min_mtu > 0 ? min_str : "",
info->min_mtu > 0 && info->max_mtu > 0 ? ", " : "",
info->max_mtu > 0 ? "Maximum: " : "",
info->max_mtu > 0 ? max_str : "",
info->min_mtu > 0 || info->max_mtu > 0 ? ")" : "");
if (r < 0)
return r;
}