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Date: Thu, 17 Aug 2017 10:35:59 -0700
From: Julien Fortin <julien@...ulusnetworks.com>
To: netdev@...r.kernel.org
Cc: roopa@...ulusnetworks.com, nikolay@...ulusnetworks.com,
dsa@...ulusnetworks.com, Julien Fortin <julien@...ulusnetworks.com>
Subject: [PATCH iproute2 json v2 12/27] ip: iplink_can.c: add json output support
From: Julien Fortin <julien@...ulusnetworks.com>
Schema: IFLA_INFO_DATA
{
"ctrlmode": {
"type": "array",
"attr": "IFLA_CAN_CTRLMODE",
"array": [
{
"type": "string"
}
]
},
"state": {
"type": "string",
"attr": "IFLA_CAN_STATE"
},
"berr_counter": {
"type": "dict",
"attr": "IFLA_CAN_BERR_COUNTER",
"dict": {
"tx": {
"type": "int"
},
"rx": {
"type": "int"
}
}
},
"restart_ms": {
"type": "int",
"attr": "IFLA_CAN_RESTART_MS"
},
"bittiming": {
"type": "dict",
"attr": "IFLA_CAN_BITTIMING",
"dict": {
"bitrate": {
"type": "int"
},
"sample_point": {
"type": "float"
},
"tq": {
"type": "int"
},
"prop_seg": {
"type": "int"
},
"phase_seg1": {
"type": "int"
},
"phase_seg2": {
"type": "int"
},
"sjw": {
"type": "int"
}
}
},
"bittiming_const": {
"type": "dict",
"attr": "IFLA_CAN_BITTIMING_CONST",
"dict": {
"name": {
"type": "string"
},
"tseg1": {
"type": "dict",
"dict": {
"min": {
"type": "int"
},
"max": {
"type": "int"
}
}
},
"tseg2": {
"type": "dict",
"dict": {
"min": {
"type": "int"
},
"max": {
"type": "int"
}
}
},
"sjw": {
"type": "dict",
"dict": {
"min": {
"type": "int"
},
"max": {
"type": "int"
}
}
},
"brp": {
"type": "dict",
"dict": {
"min": {
"type": "int"
},
"max": {
"type": "int"
}
}
},
"brp_inc": {
"type": "int"
}
}
},
"bittiming_bitrate": {
"type": "uint",
"attr": "IFLA_CAN_BITTIMING"
},
"bitrate_const": {
"type": "array",
"attr": "IFLA_CAN_BITRATE_CONST",
"array": [
{
"type": "uint"
}
]
},
"data_bittiming": {
"type": "dict",
"attr": "IFLA_CAN_DATA_BITTIMING",
"dict": {
"bitrate": {
"type": "int"
},
"sample_point": {
"type": "float"
},
"tq": {
"type": "int"
},
"prop_seg": {
"type": "int"
},
"phase_seg1": {
"type": "int"
},
"phase_seg2": {
"type": "int"
},
"sjw": {
"type": "int"
}
}
},
"data_bittiming_const": {
"type": "dict",
"attr": "IFLA_CAN_DATA_BITTIMING_CONST",
"dict": {
"name": {
"type": "string"
},
"tseg1": {
"type": "dict",
"dict": {
"min": {
"type": "int"
},
"max": {
"type": "int"
}
}
},
"tseg2": {
"type": "dict",
"dict": {
"min": {
"type": "int"
},
"max": {
"type": "int"
}
}
},
"sjw": {
"type": "dict",
"dict": {
"min": {
"type": "int"
},
"max": {
"type": "int"
}
}
},
"brp": {
"type": "dict",
"dict": {
"min": {
"type": "int"
},
"max": {
"type": "int"
}
}
},
"brp_inc": {
"type": "int"
}
}
},
"data_bittiming_bitrate": {
"type": "uint",
"attr": "IFLA_CAN_DATA_BITTIMING"
},
"data_bitrate_const": {
"type": "array",
"attr": "IFLA_CAN_DATA_BITRATE_CONST",
"array": [
{
"type": "uint"
}
]
},
"termination": {
"type": "unsigned short",
"attr": "IFLA_CAN_TERMINATION"
},
"termination_const": {
"type": "array",
"attr": "IFLA_CAN_TERMINATION_CONST",
"array": [
{
"type": "unsigned short"
}
]
},
"clock": {
"type": "int",
"attr": "IFLA_CAN_CLOCK"
}
}
IFLA_INFO_XSTATS
{
"restarts": {
"type": "int"
},
"bus_error": {
"type": "int"
},
"arbitration_lost": {
"type": "int"
},
"error_warning": {
"type": "int"
},
"error_passive": {
"type": "int"
},
"bus_off": {
"type": "int"
}
}
Signed-off-by: Julien Fortin <julien@...ulusnetworks.com>
---
ip/iplink_can.c | 282 ++++++++++++++++++++++++++++++++++++++++++--------------
1 file changed, 211 insertions(+), 71 deletions(-)
diff --git a/ip/iplink_can.c b/ip/iplink_can.c
index 5df56b2b..f415558a 100644
--- a/ip/iplink_can.c
+++ b/ip/iplink_can.c
@@ -89,11 +89,11 @@ static void set_ctrlmode(char *name, char *arg,
static void print_ctrlmode(FILE *f, __u32 cm)
{
- fprintf(f, "<");
-#define _PF(cmflag, cmname) \
- if (cm & cmflag) { \
- cm &= ~cmflag; \
- fprintf(f, "%s%s", cmname, cm ? "," : ""); \
+ open_json_array(PRINT_ANY, is_json_context() ? "ctrlmode" : "<");
+#define _PF(cmflag, cmname) \
+ if (cm & cmflag) { \
+ cm &= ~cmflag; \
+ print_string(PRINT_ANY, NULL, cm ? "%s," : "%s", cmname); \
}
_PF(CAN_CTRLMODE_LOOPBACK, "LOOPBACK");
_PF(CAN_CTRLMODE_LISTENONLY, "LISTEN-ONLY");
@@ -105,8 +105,8 @@ static void print_ctrlmode(FILE *f, __u32 cm)
_PF(CAN_CTRLMODE_PRESUME_ACK, "PRESUME-ACK");
#undef _PF
if (cm)
- fprintf(f, "%x", cm);
- fprintf(f, "> ");
+ print_hex(PRINT_ANY, NULL, "%x", cm);
+ close_json_array(PRINT_ANY, "> ");
}
static int can_parse_opt(struct link_util *lu, int argc, char **argv,
@@ -260,6 +260,14 @@ static const char *can_state_names[] = {
[CAN_STATE_SLEEPING] = "SLEEPING"
};
+static void can_print_json_timing_min_max(const char *attr, int min, int max)
+{
+ open_json_object(attr);
+ print_int(PRINT_JSON, "min", NULL, min);
+ print_int(PRINT_JSON, "max", NULL, max);
+ close_json_object();
+}
+
static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
if (!tb)
@@ -275,32 +283,64 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
if (tb[IFLA_CAN_STATE]) {
uint32_t state = rta_getattr_u32(tb[IFLA_CAN_STATE]);
- fprintf(f, "state %s ", state <= CAN_STATE_MAX ?
- can_state_names[state] : "UNKNOWN");
+ if (state <= CAN_STATE_MAX)
+ print_string(PRINT_ANY, "state", "state %s ",
+ can_state_names[state]);
+ else
+ print_null(PRINT_ANY, "state", "state UNKNOWN", NULL);
}
if (tb[IFLA_CAN_BERR_COUNTER]) {
struct can_berr_counter *bc =
RTA_DATA(tb[IFLA_CAN_BERR_COUNTER]);
- fprintf(f, "(berr-counter tx %d rx %d) ", bc->txerr, bc->rxerr);
+ if (is_json_context()) {
+ open_json_object("berr_counter");
+ print_int(PRINT_JSON, "tx", NULL, bc->txerr);
+ print_int(PRINT_JSON, "rx", NULL, bc->rxerr);
+ close_json_object();
+ } else {
+ fprintf(f, "(berr-counter tx %d rx %d) ",
+ bc->txerr, bc->rxerr);
+ }
}
if (tb[IFLA_CAN_RESTART_MS]) {
__u32 *restart_ms = RTA_DATA(tb[IFLA_CAN_RESTART_MS]);
- fprintf(f, "restart-ms %d ", *restart_ms);
+ print_int(PRINT_ANY,
+ "restart_ms",
+ "restart-ms %d ",
+ *restart_ms);
}
/* bittiming is irrelevant if fixed bitrate is defined */
if (tb[IFLA_CAN_BITTIMING] && !tb[IFLA_CAN_BITRATE_CONST]) {
struct can_bittiming *bt = RTA_DATA(tb[IFLA_CAN_BITTIMING]);
- fprintf(f, "\n bitrate %d sample-point %.3f ",
- bt->bitrate, (float)bt->sample_point / 1000.);
- fprintf(f, "\n tq %d prop-seg %d phase-seg1 %d phase-seg2 %d sjw %d",
- bt->tq, bt->prop_seg, bt->phase_seg1, bt->phase_seg2,
- bt->sjw);
+ if (is_json_context()) {
+ open_json_object("bittiming");
+ print_int(PRINT_ANY, "bitrate", NULL, bt->bitrate);
+ jsonw_float_field_fmt(get_json_writer(),
+ "sample_point", "%.3f",
+ (float) bt->sample_point / 1000.);
+ print_int(PRINT_ANY, "tq", NULL, bt->tq);
+ print_int(PRINT_ANY, "prop_seg", NULL, bt->prop_seg);
+ print_int(PRINT_ANY, "phase_seg1",
+ NULL, bt->phase_seg1);
+ print_int(PRINT_ANY, "phase_seg2",
+ NULL, bt->phase_seg2);
+ print_int(PRINT_ANY, "sjw", NULL, bt->sjw);
+ close_json_object();
+ } else {
+ fprintf(f, "\n bitrate %d sample-point %.3f ",
+ bt->bitrate, (float) bt->sample_point / 1000.);
+ fprintf(f,
+ "\n tq %d prop-seg %d phase-seg1 %d phase-seg2 %d sjw %d",
+ bt->tq, bt->prop_seg,
+ bt->phase_seg1, bt->phase_seg2,
+ bt->sjw);
+ }
}
/* bittiming const is irrelevant if fixed bitrate is defined */
@@ -308,40 +348,68 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
struct can_bittiming_const *btc =
RTA_DATA(tb[IFLA_CAN_BITTIMING_CONST]);
- fprintf(f, "\n %s: tseg1 %d..%d tseg2 %d..%d "
- "sjw 1..%d brp %d..%d brp-inc %d",
- btc->name, btc->tseg1_min, btc->tseg1_max,
- btc->tseg2_min, btc->tseg2_max, btc->sjw_max,
- btc->brp_min, btc->brp_max, btc->brp_inc);
+ if (is_json_context()) {
+ open_json_object("bittiming_const");
+ print_string(PRINT_JSON, "name", NULL, btc->name);
+ can_print_json_timing_min_max("tseg1",
+ btc->tseg1_min,
+ btc->tseg1_max);
+ can_print_json_timing_min_max("tseg2",
+ btc->tseg2_min,
+ btc->tseg2_max);
+ can_print_json_timing_min_max("sjw", 1, btc->sjw_max);
+ can_print_json_timing_min_max("brp",
+ btc->brp_min,
+ btc->brp_max);
+ print_int(PRINT_JSON, "brp_inc", NULL, btc->brp_inc);
+ close_json_object();
+ } else {
+ fprintf(f, "\n %s: tseg1 %d..%d tseg2 %d..%d "
+ "sjw 1..%d brp %d..%d brp-inc %d",
+ btc->name, btc->tseg1_min, btc->tseg1_max,
+ btc->tseg2_min, btc->tseg2_max, btc->sjw_max,
+ btc->brp_min, btc->brp_max, btc->brp_inc);
+ }
}
if (tb[IFLA_CAN_BITRATE_CONST]) {
__u32 *bitrate_const = RTA_DATA(tb[IFLA_CAN_BITRATE_CONST]);
int bitrate_cnt = RTA_PAYLOAD(tb[IFLA_CAN_BITRATE_CONST]) /
- sizeof(*bitrate_const);
+ sizeof(*bitrate_const);
int i;
__u32 bitrate = 0;
if (tb[IFLA_CAN_BITTIMING]) {
struct can_bittiming *bt =
- RTA_DATA(tb[IFLA_CAN_BITTIMING]);
+ RTA_DATA(tb[IFLA_CAN_BITTIMING]);
bitrate = bt->bitrate;
}
- fprintf(f, "\n bitrate %u", bitrate);
- fprintf(f, "\n [");
+ if (is_json_context()) {
+ print_uint(PRINT_JSON,
+ "bittiming_bitrate",
+ NULL, bitrate);
+ open_json_array(PRINT_JSON, "bitrate_const");
+ for (i = 0; i < bitrate_cnt; ++i)
+ print_uint(PRINT_JSON, NULL, NULL,
+ bitrate_const[i]);
+ close_json_array(PRINT_JSON, NULL);
+ } else {
+ fprintf(f, "\n bitrate %u", bitrate);
+ fprintf(f, "\n [");
+
+ for (i = 0; i < bitrate_cnt - 1; ++i) {
+ /* This will keep lines below 80 signs */
+ if (!(i % 6) && i)
+ fprintf(f, "\n ");
+
+ fprintf(f, "%8u, ", bitrate_const[i]);
+ }
- for (i = 0; i < bitrate_cnt - 1; ++i) {
- /* This will keep lines below 80 signs */
if (!(i % 6) && i)
fprintf(f, "\n ");
-
- fprintf(f, "%8u, ", bitrate_const[i]);
+ fprintf(f, "%8u ]", bitrate_const[i]);
}
-
- if (!(i % 6) && i)
- fprintf(f, "\n ");
- fprintf(f, "%8u ]", bitrate_const[i]);
}
/* data bittiming is irrelevant if fixed bitrate is defined */
@@ -349,12 +417,30 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
struct can_bittiming *dbt =
RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING]);
- fprintf(f, "\n dbitrate %d dsample-point %.3f ",
- dbt->bitrate, (float)dbt->sample_point / 1000.);
- fprintf(f, "\n dtq %d dprop-seg %d dphase-seg1 %d "
- "dphase-seg2 %d dsjw %d",
- dbt->tq, dbt->prop_seg, dbt->phase_seg1,
- dbt->phase_seg2, dbt->sjw);
+ if (is_json_context()) {
+ open_json_object("data_bittiming");
+ print_int(PRINT_JSON, "bitrate", NULL, dbt->bitrate);
+ jsonw_float_field_fmt(get_json_writer(),
+ "sample_point",
+ "%.3f",
+ (float) dbt->sample_point / 1000.);
+ print_int(PRINT_JSON, "tq", NULL, dbt->tq);
+ print_int(PRINT_JSON, "prop_seg", NULL, dbt->prop_seg);
+ print_int(PRINT_JSON, "phase_seg1",
+ NULL, dbt->phase_seg1);
+ print_int(PRINT_JSON, "phase_seg2",
+ NULL, dbt->phase_seg2);
+ print_int(PRINT_JSON, "sjw", NULL, dbt->sjw);
+ close_json_object();
+ } else {
+ fprintf(f, "\n dbitrate %d dsample-point %.3f ",
+ dbt->bitrate,
+ (float) dbt->sample_point / 1000.);
+ fprintf(f, "\n dtq %d dprop-seg %d dphase-seg1 %d "
+ "dphase-seg2 %d dsjw %d",
+ dbt->tq, dbt->prop_seg, dbt->phase_seg1,
+ dbt->phase_seg2, dbt->sjw);
+ }
}
/* data bittiming const is irrelevant if fixed bitrate is defined */
@@ -363,63 +449,102 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
struct can_bittiming_const *dbtc =
RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING_CONST]);
- fprintf(f, "\n %s: dtseg1 %d..%d dtseg2 %d..%d "
- "dsjw 1..%d dbrp %d..%d dbrp-inc %d",
- dbtc->name, dbtc->tseg1_min, dbtc->tseg1_max,
- dbtc->tseg2_min, dbtc->tseg2_max, dbtc->sjw_max,
- dbtc->brp_min, dbtc->brp_max, dbtc->brp_inc);
+ if (is_json_context()) {
+ open_json_object("data_bittiming_const");
+ print_string(PRINT_JSON, "name", NULL, dbtc->name);
+ can_print_json_timing_min_max("tseg1",
+ dbtc->tseg1_min,
+ dbtc->tseg1_max);
+ can_print_json_timing_min_max("tseg2",
+ dbtc->tseg2_min,
+ dbtc->tseg2_max);
+ can_print_json_timing_min_max("sjw", 1, dbtc->sjw_max);
+ can_print_json_timing_min_max("brp",
+ dbtc->brp_min,
+ dbtc->brp_max);
+
+ print_int(PRINT_JSON, "brp_inc", NULL, dbtc->brp_inc);
+ close_json_object();
+ } else {
+ fprintf(f, "\n %s: dtseg1 %d..%d dtseg2 %d..%d "
+ "dsjw 1..%d dbrp %d..%d dbrp-inc %d",
+ dbtc->name, dbtc->tseg1_min, dbtc->tseg1_max,
+ dbtc->tseg2_min, dbtc->tseg2_max, dbtc->sjw_max,
+ dbtc->brp_min, dbtc->brp_max, dbtc->brp_inc);
+ }
}
if (tb[IFLA_CAN_DATA_BITRATE_CONST]) {
__u32 *dbitrate_const =
- RTA_DATA(tb[IFLA_CAN_DATA_BITRATE_CONST]);
+ RTA_DATA(tb[IFLA_CAN_DATA_BITRATE_CONST]);
int dbitrate_cnt =
- RTA_PAYLOAD(tb[IFLA_CAN_DATA_BITRATE_CONST]) /
- sizeof(*dbitrate_const);
+ RTA_PAYLOAD(tb[IFLA_CAN_DATA_BITRATE_CONST]) /
+ sizeof(*dbitrate_const);
int i;
__u32 dbitrate = 0;
if (tb[IFLA_CAN_DATA_BITTIMING]) {
struct can_bittiming *dbt =
- RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING]);
+ RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING]);
dbitrate = dbt->bitrate;
}
- fprintf(f, "\n dbitrate %u", dbitrate);
- fprintf(f, "\n [");
+ if (is_json_context()) {
+ print_uint(PRINT_JSON, "data_bittiming_bitrate",
+ NULL, dbitrate);
+ open_json_array(PRINT_JSON, "data_bitrate_const");
+ for (i = 0; i < dbitrate_cnt; ++i)
+ print_uint(PRINT_JSON, NULL, NULL,
+ dbitrate_const[i]);
+ close_json_array(PRINT_JSON, NULL);
+ } else {
+ fprintf(f, "\n dbitrate %u", dbitrate);
+ fprintf(f, "\n [");
+
+ for (i = 0; i < dbitrate_cnt - 1; ++i) {
+ /* This will keep lines below 80 signs */
+ if (!(i % 6) && i)
+ fprintf(f, "\n ");
+
+ fprintf(f, "%8u, ", dbitrate_const[i]);
+ }
- for (i = 0; i < dbitrate_cnt - 1; ++i) {
- /* This will keep lines below 80 signs */
if (!(i % 6) && i)
fprintf(f, "\n ");
-
- fprintf(f, "%8u, ", dbitrate_const[i]);
+ fprintf(f, "%8u ]", dbitrate_const[i]);
}
-
- if (!(i % 6) && i)
- fprintf(f, "\n ");
- fprintf(f, "%8u ]", dbitrate_const[i]);
}
if (tb[IFLA_CAN_TERMINATION_CONST] && tb[IFLA_CAN_TERMINATION]) {
__u16 *trm = RTA_DATA(tb[IFLA_CAN_TERMINATION]);
__u16 *trm_const = RTA_DATA(tb[IFLA_CAN_TERMINATION_CONST]);
int trm_cnt = RTA_PAYLOAD(tb[IFLA_CAN_TERMINATION_CONST]) /
- sizeof(*trm_const);
+ sizeof(*trm_const);
int i;
- fprintf(f, "\n termination %hu [ ", *trm);
+ if (is_json_context()) {
+ print_hu(PRINT_JSON, "termination", NULL, *trm);
+ open_json_array(PRINT_JSON, "termination_const");
+ for (i = 0; i < trm_cnt; ++i)
+ print_hu(PRINT_JSON, NULL, NULL, trm_const[i]);
+ close_json_array(PRINT_JSON, NULL);
+ } else {
+ fprintf(f, "\n termination %hu [ ", *trm);
- for (i = 0; i < trm_cnt - 1; ++i)
- fprintf(f, "%hu, ", trm_const[i]);
+ for (i = 0; i < trm_cnt - 1; ++i)
+ fprintf(f, "%hu, ", trm_const[i]);
- fprintf(f, "%hu ]", trm_const[i]);
+ fprintf(f, "%hu ]", trm_const[i]);
+ }
}
if (tb[IFLA_CAN_CLOCK]) {
struct can_clock *clock = RTA_DATA(tb[IFLA_CAN_CLOCK]);
- fprintf(f, "\n clock %d", clock->freq);
+ print_int(PRINT_ANY,
+ "clock",
+ "\n clock %d",
+ clock->freq);
}
}
@@ -431,17 +556,32 @@ static void can_print_xstats(struct link_util *lu,
if (xstats && RTA_PAYLOAD(xstats) == sizeof(*stats)) {
stats = RTA_DATA(xstats);
- fprintf(f, "\n re-started bus-errors arbit-lost "
- "error-warn error-pass bus-off");
- fprintf(f, "\n %-10d %-10d %-10d %-10d %-10d %-10d",
- stats->restarts, stats->bus_error,
- stats->arbitration_lost, stats->error_warning,
- stats->error_passive, stats->bus_off);
+
+ if (is_json_context()) {
+ print_int(PRINT_JSON, "restarts",
+ NULL, stats->restarts);
+ print_int(PRINT_JSON, "bus_error",
+ NULL, stats->bus_error);
+ print_int(PRINT_JSON, "arbitration_lost",
+ NULL, stats->arbitration_lost);
+ print_int(PRINT_JSON, "error_warning",
+ NULL, stats->error_warning);
+ print_int(PRINT_JSON, "error_passive",
+ NULL, stats->error_passive);
+ print_int(PRINT_JSON, "bus_off", NULL, stats->bus_off);
+ } else {
+ fprintf(f, "\n re-started bus-errors arbit-lost "
+ "error-warn error-pass bus-off");
+ fprintf(f, "\n %-10d %-10d %-10d %-10d %-10d %-10d",
+ stats->restarts, stats->bus_error,
+ stats->arbitration_lost, stats->error_warning,
+ stats->error_passive, stats->bus_off);
+ }
}
}
static void can_print_help(struct link_util *lu, int argc, char **argv,
- FILE *f)
+ FILE *f)
{
print_usage(f);
}
--
2.14.1
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