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Message-Id: <20180306210720.19802-9-stephen@networkplumber.org>
Date: Tue, 6 Mar 2018 13:07:16 -0800
From: Stephen Hemminger <stephen@...workplumber.org>
To: dsahern@...il.com
Cc: netdev@...r.kernel.org, Stephen Hemminger <sthemmin@...rosoft.com>,
Stephen Hemminger <stephen@...workplumber.org>
Subject: [PATCH iproute2-next v2 08/12] ipsr: add json support
From: Stephen Hemminger <sthemmin@...rosoft.com>
Add json flag to ip sr command outputs.
Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
---
ip/ipseg6.c | 93 +++++++++++++++++++++++++++++++++++--------------------------
1 file changed, 54 insertions(+), 39 deletions(-)
diff --git a/ip/ipseg6.c b/ip/ipseg6.c
index e3ab31a516b8..6f5ae4d239f7 100644
--- a/ip/ipseg6.c
+++ b/ip/ipseg6.c
@@ -26,6 +26,7 @@
#include "utils.h"
#include "ip_common.h"
#include "libgenl.h"
+#include "json_print.h"
#define HMAC_KEY_PROMPT "Enter secret for HMAC key ID (blank to delete): "
@@ -55,12 +56,54 @@ static struct {
__u8 alg_id;
} opts;
+static void print_dumphmac(struct rtattr *attrs[])
+{
+ char secret[64];
+ char *algstr;
+ __u8 slen = rta_getattr_u8(attrs[SEG6_ATTR_SECRETLEN]);
+ __u8 alg_id = rta_getattr_u8(attrs[SEG6_ATTR_ALGID]);
+
+ memset(secret, 0, 64);
+
+ if (slen > 63) {
+ fprintf(stderr, "HMAC secret length %d > 63, truncated\n", slen);
+ slen = 63;
+ }
+
+ memcpy(secret, RTA_DATA(attrs[SEG6_ATTR_SECRET]), slen);
+
+ switch (alg_id) {
+ case SEG6_HMAC_ALGO_SHA1:
+ algstr = "sha1";
+ break;
+ case SEG6_HMAC_ALGO_SHA256:
+ algstr = "sha256";
+ break;
+ default:
+ algstr = "<unknown>";
+ }
+
+ print_uint(PRINT_ANY, "hmac", "hmac %u ",
+ rta_getattr_u32(attrs[SEG6_ATTR_HMACKEYID]));
+ print_string(PRINT_ANY, "algo", "algo %s ", algstr);
+ print_string(PRINT_ANY, "secret", "secret \"%s\"\n", secret);
+}
+
+static void print_tunsrc(struct rtattr *attrs[])
+{
+ const char *dst
+ = rt_addr_n2a(AF_INET6, 16,
+ RTA_DATA(attrs[SEG6_ATTR_DST]));
+
+ print_string(PRINT_ANY, "tunsrc",
+ "tunsrc addr %s\n", dst);
+}
+
static int process_msg(const struct sockaddr_nl *who, struct nlmsghdr *n,
void *arg)
{
struct rtattr *attrs[SEG6_ATTR_MAX + 1];
struct genlmsghdr *ghdr;
- FILE *fp = (FILE *)arg;
int len = n->nlmsg_len;
if (n->nlmsg_type != genl_family)
@@ -74,50 +117,17 @@ static int process_msg(const struct sockaddr_nl *who, struct nlmsghdr *n,
parse_rtattr(attrs, SEG6_ATTR_MAX, (void *)ghdr + GENL_HDRLEN, len);
+ open_json_object(NULL);
switch (ghdr->cmd) {
case SEG6_CMD_DUMPHMAC:
- {
- char secret[64];
- char *algstr;
- __u8 slen = rta_getattr_u8(attrs[SEG6_ATTR_SECRETLEN]);
- __u8 alg_id = rta_getattr_u8(attrs[SEG6_ATTR_ALGID]);
-
- memset(secret, 0, 64);
-
- if (slen > 63) {
- fprintf(stderr, "HMAC secret length %d > 63, "
- "truncated\n", slen);
- slen = 63;
- }
- memcpy(secret, RTA_DATA(attrs[SEG6_ATTR_SECRET]), slen);
-
- switch (alg_id) {
- case SEG6_HMAC_ALGO_SHA1:
- algstr = "sha1";
- break;
- case SEG6_HMAC_ALGO_SHA256:
- algstr = "sha256";
- break;
- default:
- algstr = "<unknown>";
- }
-
- fprintf(fp, "hmac %u ",
- rta_getattr_u32(attrs[SEG6_ATTR_HMACKEYID]));
- fprintf(fp, "algo %s ", algstr);
- fprintf(fp, "secret \"%s\" ", secret);
-
- fprintf(fp, "\n");
+ print_dumphmac(attrs);
break;
- }
+
case SEG6_CMD_GET_TUNSRC:
- {
- fprintf(fp, "tunsrc addr %s\n",
- rt_addr_n2a(AF_INET6, 16,
- RTA_DATA(attrs[SEG6_ATTR_DST])));
+ print_tunsrc(attrs);
break;
}
- }
+ close_json_object();
return 0;
}
@@ -169,10 +179,12 @@ static int seg6_do_cmd(void)
} else if (repl) {
if (rtnl_talk(&grth, &req.n, &answer) < 0)
return -2;
+ new_json_obj(json);
if (process_msg(NULL, answer, stdout) < 0) {
fprintf(stderr, "Error parsing reply\n");
exit(1);
}
+ delete_json_obj();
free(answer);
} else {
req.n.nlmsg_flags |= NLM_F_DUMP;
@@ -182,10 +194,13 @@ static int seg6_do_cmd(void)
exit(1);
}
+ new_json_obj(json);
if (rtnl_dump_filter(&grth, process_msg, stdout) < 0) {
fprintf(stderr, "Dump terminated\n");
exit(1);
}
+ delete_json_obj();
+ fflush(stdout);
}
return 0;
--
2.16.1
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