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authorQuentin Monnet2017-10-23 09:24:07 -0700
committerDavid S. Miller2017-10-24 01:25:08 +0100
commitd35efba99d9221d9fe1715a23247ad9b703544ec (patch)
tree1b89543dbbbfde0127b06581abd45091c7f93c5e /tools/bpf/bpftool/main.h
parenta2bc2e5c2c0604bf5366b5e56ef46335adaf7491 (diff)
tools: bpftool: introduce --json and --pretty options
These two options can be used to ask for a JSON output (--j or -json), and to make this JSON human-readable (-p or --pretty). A json_writer object is created when JSON is required, and will be used in follow-up commits to produce JSON output. Note that --pretty implies --json. Update for the manual pages and interactive help messages comes in a later patch of the series. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/bpf/bpftool/main.h')
-rw-r--r--tools/bpf/bpftool/main.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/main.h b/tools/bpf/bpftool/main.h
index 41e6c7d3fcad..15927fc9fb31 100644
--- a/tools/bpf/bpftool/main.h
+++ b/tools/bpf/bpftool/main.h
@@ -43,6 +43,8 @@
#include <linux/bpf.h>
#include <linux/kernel.h>
+#include "json_writer.h"
+
#define err(msg...) fprintf(stderr, "Error: " msg)
#define warn(msg...) fprintf(stderr, "Warning: " msg)
#define info(msg...) fprintf(stderr, msg)
@@ -66,6 +68,9 @@ enum bpf_obj_type {
extern const char *bin_name;
+extern json_writer_t *json_wtr;
+extern bool json_output;
+
bool is_prefix(const char *pfx, const char *str);
void fprint_hex(FILE *f, void *arg, unsigned int n, const char *sep);
void usage(void) __attribute__((noreturn));