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ipsr: add json support

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Add json flag to ip sr command outputs.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
This commit is contained in:
Stephen Hemminger 2018-03-06 13:07:16 -08:00 committed by David Ahern
parent 74498126fd
commit 111f79ad38
1 changed files with 54 additions and 39 deletions
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93
ip/ipseg6.c
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@ -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;