From 7bb75228e6849f3371cd434cf36d29f406db1ccc Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Sun, 18 Oct 2020 14:31:46 -0700 Subject: [PATCH 29/37] pause: add --json support No change in normal text output: # ./ethtool -a eth0 Pause parameters for eth0: Autonegotiate: on RX: on TX: on RX negotiated: on TX negotiated: on JSON: # ./ethtool --json -a eth0 [ { "ifname": "eth0", "autonegotiate": true, "rx": true, "tx": true, "negotiated": { "rx": true, "tx": true } } ] v2: - restructure show_bool() so we can use its logic for show_bool_val() Signed-off-by: Jakub Kicinski Signed-off-by: Michal Kubecek (cherry picked from commit 7e5c1ddbe67d0eefe9004e9a69f2ea5378e3bc5e) --- netlink/coalesce.c | 6 +++--- netlink/netlink.h | 21 ++++++++++++++++----- netlink/pause.c | 44 ++++++++++++++++++++++++++++++++------------ 3 files changed, 51 insertions(+), 20 deletions(-) diff --git a/netlink/coalesce.c b/netlink/coalesce.c index 0223f8e3484e..75922a91c2e7 100644 --- a/netlink/coalesce.c +++ b/netlink/coalesce.c @@ -36,9 +36,9 @@ int coalesce_reply_cb(const struct nlmsghdr *nlhdr, void *data) if (silent) putchar('\n'); printf("Coalesce parameters for %s:\n", nlctx->devname); - printf("Adaptive RX: %s TX: %s\n", - u8_to_bool(tb[ETHTOOL_A_COALESCE_USE_ADAPTIVE_RX]), - u8_to_bool(tb[ETHTOOL_A_COALESCE_USE_ADAPTIVE_TX])); + show_bool("rx", "Adaptive RX: %s ", + tb[ETHTOOL_A_COALESCE_USE_ADAPTIVE_RX]); + show_bool("tx", "TX: %s\n", tb[ETHTOOL_A_COALESCE_USE_ADAPTIVE_TX]); show_u32(tb[ETHTOOL_A_COALESCE_STATS_BLOCK_USECS], "stats-block-usecs: "); show_u32(tb[ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL], diff --git a/netlink/netlink.h b/netlink/netlink.h index 61a072db8ed9..e79143016bd5 100644 --- a/netlink/netlink.h +++ b/netlink/netlink.h @@ -102,17 +102,28 @@ static inline void show_u32(const struct nlattr *attr, const char *label) printf("%sn/a\n", label); } -static inline const char *u8_to_bool(const struct nlattr *attr) +static inline const char *u8_to_bool(const uint8_t *val) { - if (attr) - return mnl_attr_get_u8(attr) ? "on" : "off"; + if (val) + return *val ? "on" : "off"; else return "n/a"; } -static inline void show_bool(const struct nlattr *attr, const char *label) +static inline void show_bool_val(const char *key, const char *fmt, uint8_t *val) +{ + if (is_json_context()) { + if (val) + print_bool(PRINT_JSON, key, NULL, val); + } else { + print_string(PRINT_FP, NULL, fmt, u8_to_bool(val)); + } +} + +static inline void show_bool(const char *key, const char *fmt, + const struct nlattr *attr) { - printf("%s%s\n", label, u8_to_bool(attr)); + show_bool_val(key, fmt, attr ? mnl_attr_get_payload(attr) : NULL); } /* misc */ diff --git a/netlink/pause.c b/netlink/pause.c index 048320b123d2..c54488d71fce 100644 --- a/netlink/pause.c +++ b/netlink/pause.c @@ -40,8 +40,8 @@ static int pause_autoneg_cb(const struct nlmsghdr *nlhdr, void *data) struct pause_autoneg_status ours = {}; struct pause_autoneg_status peer = {}; struct nl_context *nlctx = data; - bool rx_status = false; - bool tx_status = false; + uint8_t rx_status = false; + uint8_t tx_status = false; bool silent; int err_ret; int ret; @@ -72,8 +72,11 @@ static int pause_autoneg_cb(const struct nlmsghdr *nlhdr, void *data) else if (peer.pause) tx_status = true; } - printf("RX negotiated: %s\nTX negotiated: %s\n", - rx_status ? "on" : "off", tx_status ? "on" : "off"); + + open_json_object("negotiated"); + show_bool_val("rx", "RX negotiated: %s\n", &rx_status); + show_bool_val("tx", "TX negotiated: %s\n", &tx_status); + close_json_object(); return MNL_CB_OK; } @@ -121,21 +124,34 @@ int pause_reply_cb(const struct nlmsghdr *nlhdr, void *data) return err_ret; if (silent) - putchar('\n'); - printf("Pause parameters for %s:\n", nlctx->devname); - show_bool(tb[ETHTOOL_A_PAUSE_AUTONEG], "Autonegotiate:\t"); - show_bool(tb[ETHTOOL_A_PAUSE_RX], "RX:\t\t"); - show_bool(tb[ETHTOOL_A_PAUSE_TX], "TX:\t\t"); + print_nl(); + + open_json_object(NULL); + + print_string(PRINT_ANY, "ifname", "Pause parameters for %s:\n", + nlctx->devname); + + show_bool("autonegotiate", "Autonegotiate:\t%s\n", + tb[ETHTOOL_A_PAUSE_AUTONEG]); + show_bool("rx", "RX:\t\t%s\n", tb[ETHTOOL_A_PAUSE_RX]); + show_bool("tx", "TX:\t\t%s\n", tb[ETHTOOL_A_PAUSE_TX]); + if (!nlctx->is_monitor && tb[ETHTOOL_A_PAUSE_AUTONEG] && mnl_attr_get_u8(tb[ETHTOOL_A_PAUSE_AUTONEG])) { ret = show_pause_autoneg_status(nlctx); if (ret < 0) - return err_ret; + goto err_close_dev; } if (!silent) - putchar('\n'); + print_nl(); + + close_json_object(); return MNL_CB_OK; + +err_close_dev: + close_json_object(); + return err_ret; } int nl_gpause(struct cmd_context *ctx) @@ -156,7 +172,11 @@ int nl_gpause(struct cmd_context *ctx) ETHTOOL_A_PAUSE_HEADER, 0); if (ret < 0) return ret; - return nlsock_send_get_request(nlsk, pause_reply_cb); + + new_json_obj(ctx->json); + ret = nlsock_send_get_request(nlsk, pause_reply_cb); + delete_json_obj(); + return ret; } /* PAUSE_SET */ -- 2.26.2