ipaddrlabel: add json support

Add missing json and color support to addrlabel display

Example:
$ ip -j -p addrlabel
[ {
        "address": "::1",
        "prefixlen": 128,
        "label": 56
    },{
        "address": "::",
        "prefixlen": 96,
        "label": 56
    },{
...

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David Ahern <dsahern@gmail.com>

diff --git a/ip/ipaddrlabel.c b/ip/ipaddrlabel.c
index 7200bf542929caa359c879e46c0fe44778166738..2f79c56dcead29e41c8bff2dbf9e977c779083cc 100644 (file)
--- a/ip/ipaddrlabel.c
+++ b/ip/ipaddrlabel.c
@@ -38,6 +38,7 @@
 #include "rt_names.h"
 #include "utils.h"
 #include "ip_common.h"
+#include "json_print.h"
 
 #define IFAL_RTA(r)    ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrlblmsg))))
 #define IFAL_PAYLOAD(n)        NLMSG_PAYLOAD(n, sizeof(struct ifaddrlblmsg))
@@ -55,7 +56,6 @@ static void usage(void)
 
 int print_addrlabel(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
 {
-       FILE *fp = (FILE *)arg;
        struct ifaddrlblmsg *ifal = NLMSG_DATA(n);
        int len = n->nlmsg_len;
        struct rtattr *tb[IFAL_MAX+1];
@@ -69,28 +69,40 @@ int print_addrlabel(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg
 
        parse_rtattr(tb, IFAL_MAX, IFAL_RTA(ifal), len);
 
+       open_json_object(NULL);
        if (n->nlmsg_type == RTM_DELADDRLABEL)
-               fprintf(fp, "Deleted ");
+               print_bool(PRINT_ANY, "deleted", "Deleted ", true);
 
        if (tb[IFAL_ADDRESS]) {
-               fprintf(fp, "prefix %s/%u ",
-                       format_host_rta(ifal->ifal_family,
-                                       tb[IFAL_ADDRESS]),
-                       ifal->ifal_prefixlen);
+               const char *host
+                       = format_host_rta(ifal->ifal_family,
+                                         tb[IFAL_ADDRESS]);
+
+               print_string(PRINT_FP, NULL, "prefix ", NULL);
+               print_color_string(PRINT_ANY,
+                                  ifa_family_color(ifal->ifal_family),
+                                  "address", "%s", host);
+
+               print_uint(PRINT_ANY, "prefixlen", "/%u ",
+                          ifal->ifal_prefixlen);
        }
 
-       if (ifal->ifal_index)
-               fprintf(fp, "dev %s ", ll_index_to_name(ifal->ifal_index));
+       if (ifal->ifal_index) {
+               print_string(PRINT_FP, NULL, "dev ", NULL);
+               print_color_string(PRINT_ANY, COLOR_IFNAME,
+                                  "ifname", "%s ",
+                                  ll_index_to_name(ifal->ifal_index));
+       }
 
        if (tb[IFAL_LABEL] && RTA_PAYLOAD(tb[IFAL_LABEL]) == sizeof(uint32_t)) {
-               uint32_t label;
+               uint32_t label = rta_getattr_u32(RTA_DATA(tb[IFAL_LABEL]));
 
-               memcpy(&label, RTA_DATA(tb[IFAL_LABEL]), sizeof(label));
-               fprintf(fp, "label %u ", label);
+               print_uint(PRINT_ANY,
+                          "label", "label %u ", label);
        }
+       print_string(PRINT_FP, NULL, "\n", "");
+       close_json_object();
 
-       fprintf(fp, "\n");
-       fflush(fp);
        return 0;
 }
 
@@ -111,10 +123,12 @@ static int ipaddrlabel_list(int argc, char **argv)
                return 1;
        }
 
+       new_json_obj(json);
        if (rtnl_dump_filter(&rth, print_addrlabel, stdout) < 0) {
                fprintf(stderr, "Dump terminated\n");
                return 1;
        }
+       delete_json_obj();
 
        return 0;
 }