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tc: add json support in csum action

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Add json output support for checksum action.

Example output:

~$ $TC actions add action csum udp continue index 7
~$ $TC actions add action csum icmp iph igmp pipe index 200 cookie 112233
~$ $TC -j actions ls action csum

[{
    "total acts":2
}, {
    "actions": [{
        "order":0,
        "csum":"udp",
        "control_action": {
            "type":"continue"
        },
        "index":7,
        "ref":1,
        "bind":0
    }, {
        "order":1,
        "csum":"iph, icmp, igmp",
        "control_action": {
            "type":"pipe"
        },
        "index":200,
        "ref":1,
        "bind":0,
        "cookie":"112233"
    }]
}]

v2:
    Don't initialized char buf[64];
    Add output example

Signed-off-by: Keara Leibovitz <kleib@mojatatu.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
This commit is contained in:
Keara Leibovitz 2018-06-05 16:44:19 -04:00 committed by David Ahern
parent 55b973329c
commit 831b5d40d9
1 changed files with 10 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
tc/m_csum.c
View File

@ -162,6 +162,7 @@ print_csum(struct action_util *au, FILE *f, struct rtattr *arg)
char *uflag_5 = "";
char *uflag_6 = "";
char *uflag_7 = "";
SPRINT_BUF(buf);
int uflag_count = 0;
@ -198,12 +199,15 @@ print_csum(struct action_util *au, FILE *f, struct rtattr *arg)
uflag_1 = "?empty";
}
fprintf(f, "csum (%s%s%s%s%s%s%s) ",
uflag_1, uflag_2, uflag_3,
uflag_4, uflag_5, uflag_6, uflag_7);
snprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s",
uflag_1, uflag_2, uflag_3,
uflag_4, uflag_5, uflag_6, uflag_7);
print_string(PRINT_ANY, "csum", "csum (%s) ", buf);
print_action_control(f, "action ", sel->action, "\n");
fprintf(f, "\tindex %u ref %d bind %d", sel->index, sel->refcnt,
sel->bindcnt);
print_uint(PRINT_ANY, "index", "\tindex %u", sel->index);
print_int(PRINT_ANY, "ref", " ref %d", sel->refcnt);
print_int(PRINT_ANY, "bind", " bind %d", sel->bindcnt);
if (show_stats) {
if (tb[TCA_CSUM_TM]) {
@ -212,7 +216,7 @@ print_csum(struct action_util *au, FILE *f, struct rtattr *arg)
print_tm(f, tm);
}
}
fprintf(f, "\n");
print_string(PRINT_FP, NULL, "%s", "\n");
return 0;
}