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ip: iplink_can.c: add json output support 

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@cumulusnetworks.com>
This commit is contained in:
Julien Fortin 2017-08-17 10:35:59 -07:00 committed by Stephen Hemminger
parent 165a703909
commit 529226009f
1 changed files with 211 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

164
ip/iplink_can.c
View File

@ -89,11 +89,11 @@ static void set_ctrlmode(char *name, char *arg,
static void print_ctrlmode(FILE *f, __u32 cm)
{
fprintf(f, "<");
open_json_array(PRINT_ANY, is_json_context() ? "ctrlmode" : "<");
#define _PF(cmflag, cmname) \
if (cm & cmflag) { \
cm &= ~cmflag; \
fprintf(f, "%s%s", cmname, cm ? "," : ""); \
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)
@ -275,45 +283,94 @@ 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]);
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,
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 */
if (tb[IFLA_CAN_BITTIMING_CONST] && !tb[IFLA_CAN_BITRATE_CONST]) {
struct can_bittiming_const *btc =
RTA_DATA(tb[IFLA_CAN_BITTIMING_CONST]);
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]);
@ -328,6 +385,16 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
bitrate = bt->bitrate;
}
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 [");
@ -343,19 +410,38 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
fprintf(f, "\n ");
fprintf(f, "%8u ]", bitrate_const[i]);
}
}
/* data bittiming is irrelevant if fixed bitrate is defined */
if (tb[IFLA_CAN_DATA_BITTIMING] && !tb[IFLA_CAN_DATA_BITRATE_CONST]) {
struct can_bittiming *dbt =
RTA_DATA(tb[IFLA_CAN_DATA_BITTIMING]);
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.);
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 */
if (tb[IFLA_CAN_DATA_BITTIMING_CONST] &&
@ -363,12 +449,30 @@ 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]);
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 =
@ -385,6 +489,15 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
dbitrate = dbt->bitrate;
}
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 [");
@ -400,6 +513,7 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
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]);
@ -408,6 +522,13 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
sizeof(*trm_const);
int i;
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)
@ -415,11 +536,15 @@ static void can_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
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);
}
}
@ -431,6 +556,20 @@ static void can_print_xstats(struct link_util *lu,
if (xstats && RTA_PAYLOAD(xstats) == sizeof(*stats)) {
stats = RTA_DATA(xstats);
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",
@ -439,6 +578,7 @@ static void can_print_xstats(struct link_util *lu,
stats->error_passive, stats->bus_off);
}
}
}
static void can_print_help(struct link_util *lu, int argc, char **argv,
FILE *f)