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Date: Tue, 27 Mar 2018 18:07:45 -0700
From: Stephen Hemminger <stephen@...workplumber.org>
To: netdev@...r.kernel.org
Cc: Stephen Hemminger <sthemmin@...rosoft.com>,
Stephen Hemminger <stephen@...workplumber.org>
Subject: [PATCH iproute2-next 2/2] ip/l2tp: add JSON support
From: Stephen Hemminger <sthemmin@...rosoft.com>
Convert ip l2tp to use JSON output routines.
Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
---
ip/ipl2tp.c | 152 ++++++++++++++++++++++++++++++++++++++++--------------------
1 file changed, 103 insertions(+), 49 deletions(-)
diff --git a/ip/ipl2tp.c b/ip/ipl2tp.c
index 8aaee747e294..750f912aa96a 100644
--- a/ip/ipl2tp.c
+++ b/ip/ipl2tp.c
@@ -204,15 +204,22 @@ static int delete_session(struct l2tp_parm *p)
return 0;
}
-static void print_cookie(char *name, const uint8_t *cookie, int len)
+static void print_cookie(const char *name, const char *fmt,
+ const uint8_t *cookie, int len)
{
- printf(" %s %02x%02x%02x%02x", name,
- cookie[0], cookie[1],
- cookie[2], cookie[3]);
+ char abuf[32];
+ size_t n;
+
+ n = snprintf(abuf, sizeof(abuf),
+ "%02x%02x%02x%02x",
+ cookie[0], cookie[1], cookie[2], cookie[3]);
if (len == 8)
- printf("%02x%02x%02x%02x",
- cookie[4], cookie[5],
- cookie[6], cookie[7]);
+ snprintf(abuf + n, sizeof(abuf) - n,
+ "%02x%02x%02x%02x",
+ cookie[4], cookie[5],
+ cookie[6], cookie[7]);
+
+ print_string(PRINT_ANY, name, fmt, abuf);
}
static void print_tunnel(const struct l2tp_data *data)
@@ -220,74 +227,115 @@ static void print_tunnel(const struct l2tp_data *data)
const struct l2tp_parm *p = &data->config;
char buf[INET6_ADDRSTRLEN];
- printf("Tunnel %u, encap %s\n",
- p->tunnel_id,
- p->encap == L2TP_ENCAPTYPE_UDP ? "UDP" :
- p->encap == L2TP_ENCAPTYPE_IP ? "IP" : "??");
- printf(" From %s ",
- inet_ntop(p->local_ip.family, p->local_ip.data,
- buf, sizeof(buf)));
- printf("to %s\n",
- inet_ntop(p->peer_ip.family, p->peer_ip.data,
- buf, sizeof(buf)));
- printf(" Peer tunnel %u\n",
- p->peer_tunnel_id);
+ open_json_object(NULL);
+ print_uint(PRINT_ANY, "tunnel_id", "Tunnel %u,", p->tunnel_id);
+ print_string(PRINT_ANY, "encap", " encap %s",
+ p->encap == L2TP_ENCAPTYPE_UDP ? "UDP" :
+ p->encap == L2TP_ENCAPTYPE_IP ? "IP" : "??");
+ print_string(PRINT_FP, NULL, "%s", _SL_);
+
+ print_string(PRINT_ANY, "local", " From %s ",
+ inet_ntop(p->local_ip.family, p->local_ip.data,
+ buf, sizeof(buf)));
+ print_string(PRINT_ANY, "peer", "to %s",
+ inet_ntop(p->peer_ip.family, p->peer_ip.data,
+ buf, sizeof(buf)));
+ print_string(PRINT_FP, NULL, "%s", _SL_);
+
+ print_uint(PRINT_ANY, "peer_tunnel", " Peer tunnel %u",
+ p->peer_tunnel_id);
+ print_string(PRINT_FP, NULL, "%s", _SL_);
if (p->encap == L2TP_ENCAPTYPE_UDP) {
- printf(" UDP source / dest ports: %hu/%hu\n",
- p->local_udp_port, p->peer_udp_port);
+ print_string(PRINT_FP, NULL,
+ " UDP source / dest ports:", NULL);
+
+ print_uint(PRINT_ANY, "local_port", " %hu",
+ p->local_udp_port);
+ print_uint(PRINT_ANY, "peer_port", "/%hu",
+ p->peer_udp_port);
+ print_string(PRINT_FP, NULL, "%s", _SL_);
switch (p->local_ip.family) {
case AF_INET:
- printf(" UDP checksum: %s\n",
- p->udp_csum ? "enabled" : "disabled");
+ print_bool(PRINT_JSON, "checksum",
+ NULL, p->udp_csum);
+ print_string(PRINT_FP, NULL,
+ " UDP checksum: %s\n",
+ p->udp_csum ? "enabled" : "disabled");
break;
case AF_INET6:
- printf(" UDP checksum: %s%s%s%s\n",
- p->udp6_csum_tx && p->udp6_csum_rx
- ? "enabled" : "",
- p->udp6_csum_tx && !p->udp6_csum_rx
- ? "tx" : "",
- !p->udp6_csum_tx && p->udp6_csum_rx
- ? "rx" : "",
- !p->udp6_csum_tx && !p->udp6_csum_rx
- ? "disabled" : "");
+ if (is_json_context()) {
+ print_bool(PRINT_JSON, "checksum_tx",
+ NULL, p->udp6_csum_tx);
+
+ print_bool(PRINT_JSON, "checksum_rx",
+ NULL, p->udp6_csum_tx);
+ } else {
+ printf(" UDP checksum: %s%s%s%s\n",
+ p->udp6_csum_tx && p->udp6_csum_rx
+ ? "enabled" : "",
+ p->udp6_csum_tx && !p->udp6_csum_rx
+ ? "tx" : "",
+ !p->udp6_csum_tx && p->udp6_csum_rx
+ ? "rx" : "",
+ !p->udp6_csum_tx && !p->udp6_csum_rx
+ ? "disabled" : "");
+ }
break;
}
}
+ close_json_object();
}
static void print_session(struct l2tp_data *data)
{
struct l2tp_parm *p = &data->config;
- printf("Session %u in tunnel %u\n",
- p->session_id, p->tunnel_id);
- printf(" Peer session %u, tunnel %u\n",
- p->peer_session_id, p->peer_tunnel_id);
+ open_json_object(NULL);
- if (p->ifname != NULL)
- printf(" interface name: %s\n", p->ifname);
+ print_uint(PRINT_ANY, "session_id", "Session %u", p->session_id);
+ print_uint(PRINT_ANY, "tunnel_id", " in tunnel %u", p->tunnel_id);
+ print_string(PRINT_FP, NULL, "%s", _SL_);
+
+ print_uint(PRINT_ANY, "peer_session_id",
+ " Peer session %u,", p->peer_session_id);
+ print_uint(PRINT_ANY, "peer_tunnel_id",
+ " tunnel %u", p->peer_tunnel_id);
+ print_string(PRINT_FP, NULL, "%s", _SL_);
+
+ if (p->ifname != NULL) {
+ print_color_string(PRINT_ANY, COLOR_IFNAME,
+ "interface", " interface name: %s" , p->ifname);
+ print_string(PRINT_FP, NULL, "%s", _SL_);
+ }
+
+ print_uint(PRINT_ANY, "offset", " offset %u,", p->offset);
+ print_uint(PRINT_ANY, "peer_offset", " peer offset %u\n", p->peer_offset);
- printf(" offset %u, peer offset %u\n",
- p->offset, p->peer_offset);
if (p->cookie_len > 0)
- print_cookie("cookie", p->cookie, p->cookie_len);
+ print_cookie("cookie", "cookie",
+ p->cookie, p->cookie_len);
if (p->peer_cookie_len > 0)
- print_cookie("peer cookie", p->peer_cookie, p->peer_cookie_len);
+ print_cookie("peer_cookie", "peer cookie",
+ p->peer_cookie, p->peer_cookie_len);
if (p->reorder_timeout != 0)
- printf(" reorder timeout: %u\n", p->reorder_timeout);
- else
- printf("\n");
+ print_uint(PRINT_ANY, "reorder_timeout",
+ " reorder timeout: %u", p->reorder_timeout);
+
+
if (p->send_seq || p->recv_seq) {
- printf(" sequence numbering:");
+ print_string(PRINT_FP, NULL, "%s sequence numbering:", _SL_);
+
if (p->send_seq)
- printf(" send");
+ print_null(PRINT_ANY, "send_seq", " send", NULL);
if (p->recv_seq)
- printf(" recv");
- printf("\n");
+ print_null(PRINT_ANY, "recv_seq", " recv", NULL);
+
}
+ print_string(PRINT_FP, NULL, "\n", NULL);
+ close_json_object();
}
static int get_response(struct nlmsghdr *n, void *arg)
@@ -435,10 +483,13 @@ static int get_session(struct l2tp_data *p)
if (rtnl_send(&genl_rth, &req, req.n.nlmsg_len) < 0)
return -2;
+ new_json_obj(json);
if (rtnl_dump_filter(&genl_rth, session_nlmsg, p) < 0) {
fprintf(stderr, "Dump terminated\n");
exit(1);
}
+ delete_json_obj();
+ fflush(stdout);
return 0;
}
@@ -468,10 +519,13 @@ static int get_tunnel(struct l2tp_data *p)
if (rtnl_send(&genl_rth, &req, req.n.nlmsg_len) < 0)
return -2;
+ new_json_obj(json);
if (rtnl_dump_filter(&genl_rth, tunnel_nlmsg, p) < 0) {
fprintf(stderr, "Dump terminated\n");
exit(1);
}
+ delete_json_obj();
+ fflush(stdout);
return 0;
}
--
2.16.2
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