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ip: iplink_xdp.c: add json output support

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Schema
{
    "attached": {
        "type": "uint",
        "attr": "IFLA_XDP_ATTACHED"
    },
    "prog_id": {
        "type": "uint",
        "attr": "IFLA_XDP_PROG_ID"
    }
}

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>
This commit is contained in:
Julien Fortin 2017-08-17 10:36:05 -07:00 committed by Stephen Hemminger
parent 3b98d9b804
commit 2f26065e25
1 changed files with 18 additions and 13 deletions
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31
ip/iplink_xdp.c
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@ -16,6 +16,7 @@
#include "xdp.h"
#include "bpf_util.h"
#include "ip_common.h"
extern int force;
@ -92,20 +93,24 @@ void xdp_dump(FILE *fp, struct rtattr *xdp)
return;
mode = rta_getattr_u8(tb[IFLA_XDP_ATTACHED]);
if (mode == XDP_ATTACHED_NONE)
return;
else if (mode == XDP_ATTACHED_DRV)
fprintf(fp, "xdp");
else if (mode == XDP_ATTACHED_SKB)
fprintf(fp, "xdpgeneric");
else if (mode == XDP_ATTACHED_HW)
fprintf(fp, "xdpoffload");
else
fprintf(fp, "xdp[%u]", mode);
if (is_json_context()) {
print_uint(PRINT_JSON, "attached", NULL, mode);
} else {
if (mode == XDP_ATTACHED_NONE)
return;
else if (mode == XDP_ATTACHED_DRV)
fprintf(fp, "xdp");
else if (mode == XDP_ATTACHED_SKB)
fprintf(fp, "xdpgeneric");
else if (mode == XDP_ATTACHED_HW)
fprintf(fp, "xdpoffload");
else
fprintf(fp, "xdp[%u]", mode);
}
if (tb[IFLA_XDP_PROG_ID])
fprintf(fp, "/id:%u",
rta_getattr_u32(tb[IFLA_XDP_PROG_ID]));
print_uint(PRINT_ANY, "prog_id", "/id:%u",
rta_getattr_u32(tb[IFLA_XDP_PROG_ID]));
fprintf(fp, " ");
print_string(PRINT_FP, NULL, "%c", " ");
}