ip route generates an invalid JSON if the route type has to be printed, eg. when detailed mode is active, or the type is different that unicast:
$ ip -d -j -p route show [ {"unicast", "dst": "192.168.122.0/24", "dev": "virbr0", "protocol": "kernel", "scope": "link", "prefsrc": "192.168.122.1", "flags": [ "linkdown" ] } ] $ ip -j -p route show [ {"unreachable", "dst": "192.168.23.0/24", "flags": [ ] },{"prohibit", "dst": "192.168.24.0/24", "flags": [ ] },{"blackhole", "dst": "192.168.25.0/24", "flags": [ ] } ] Fix it by printing the route type as the "type" attribute: $ ip -d -j -p route show [ { "type": "unicast", "dst": "default", "gateway": "192.168.85.1", "dev": "wlp3s0", "protocol": "dhcp", "scope": "global", "metric": 600, "flags": [ ] },{ "type": "unreachable", "dst": "192.168.23.0/24", "protocol": "boot", "scope": "global", "flags": [ ] },{ "type": "prohibit", "dst": "192.168.24.0/24", "protocol": "boot", "scope": "global", "flags": [ ] },{ "type": "blackhole", "dst": "192.168.25.0/24", "protocol": "boot", "scope": "global", "flags": [ ] } ] Fixes: 663c3cb23103 ("iproute: implement JSON and color output") Acked-by: Phil Sutter <p...@nwl.cc> Reviewed-and-tested-by: Andrea Claudi <acla...@redhat.com> Signed-off-by: Matteo Croce <mcr...@redhat.com> --- ip/iproute.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ip/iproute.c b/ip/iproute.c index cc02a3e1..e091927b 100644 --- a/ip/iproute.c +++ b/ip/iproute.c @@ -766,7 +766,7 @@ int print_route(struct nlmsghdr *n, void *arg) if ((r->rtm_type != RTN_UNICAST || show_details > 0) && (!filter.typemask || (filter.typemask & (1 << r->rtm_type)))) - print_string(PRINT_ANY, NULL, "%s ", + print_string(PRINT_ANY, "type", "%s ", rtnl_rtntype_n2a(r->rtm_type, b1, sizeof(b1))); color = COLOR_NONE; -- 2.20.1