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ip: link_ip6tnl.c: add json output support

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Schema
{
    "proto": {
        "type": "string",
        "attr": "IFLA_IPTUN_PROTO"
    },
    "remote": {
        "type": "string",
        "attr": "IFLA_IPTUN_REMOTE"
    },
    "local": {
        "type": "string",
        "attr": "IFLA_IPTUN_LOCAL"
    },
    "link": {
        "type": "string",
        "attr": "IFLA_IPTUN_LINK",
        "mutually_exclusive": {
            "link_index": {
                "type": "uint",
            }
        }
    },
    "ip6_tnl_f_ign_encap_limit": {
        "type": "bool",
        "attr": "IP6_TNL_F_IGN_ENCAP_LIMIT"
    },
    "encap_limit": {
        "type": "uint",
        "attr": "IFLA_IPTUN_ENCAP_LIMIT"
    },
    "ttl": {
        "type": "uint",
        "attr": "IFLA_IPTUN_TTL"
    },
    "ip6_tnl_f_use_orig_tclass": {
        "type": "",
        "attr": "IP6_TNL_F_USE_ORIG_TCLASS"
    },
    "flowinfo_tclass": {
        "type": "string",
        "attr": "IP6_FLOWINFO_TCLASS"
    },
    "ip6_tnl_f_use_orig_flowlabel": {
        "type": "bool",
        "attr": "IP6_TNL_F_USE_ORIG_FLOWLABEL"
    },
    "flowlabel": {
        "type": "string",
        "attr": "IP6_FLOWINFO_FLOWLABEL"
    },
    "flowinfo": {
        "type": "string"
    },
    "ip6_tnl_f_rcv_dscp_copy": {
        "type": "bool",
        "attr": "IP6_TNL_F_RCV_DSCP_COPY"
    },
    "ip6_tnl_f_mip6_dev": {
        "type": "bool",
        "attr": "IP6_TNL_F_MIP6_DEV"
    },
    "ip6_tnl_f_use_orig_fwmark": {
        "type": "bool",
        "attr": "IP6_TNL_F_USE_ORIG_FWMARK"
    },
    "encap": {
        "type": "dict",
        "attr": "IFLA_IPTUN_ENCAP_TYPE",
        "dict": {
            "type": {
                "type": "string",
                "attr": "IFLA_IPTUN_ENCAP_TYPE"
            },
            "sport": {
                "type": "uint",
                "attr": "IFLA_IPTUN_ENCAP_SPORT"
            },
            "dport": {
                "type": "uint",
                "attr": "IFLA_IPTUN_ENCAP_DPORT"
            },
            "csum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM"
            },
            "csum6": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM6"
            },
            "remcsum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_REMCSUM"
            }
        }
    }
}

$ ip link show
$ ip -6 tunnel add name tun6 mode ip6gre local 2001:db8:1::1/64 remote
2001:0db8:85a3:0000:0000:8a2e:0370:7334
$ ip link show
10: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT group
default
    link/tunnel6 :: brd ::
11: ip6gre0@NONE: <NOARP> mtu 1448 qdisc noop state DOWN mode DEFAULT group
default
    link/gre6 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00 brd
00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
12: tun6@NONE: <POINTOPOINT,NOARP> mtu 1448 qdisc noop state DOWN mode
DEFAULT group default
    link/gre6 20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01 peer
20:01:0d:b8:85:a3:00:00:00:00:8a:2e:03:70:73:34
➜  ~ ./ip -details -json link show
[{
        "ifindex": 10,
        "ifname": "ip6tnl0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1452,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "tunnel6",
        "address": "::",
        "broadcast": "::",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6tnl",
            "info_data": {
                "proto": "ip6ip6",
                "remote": "::",
                "local": "::",
                "encap_limit": 0,
                "ttl": 0,
                "flowinfo_tclass": "0x00",
                "flowlabel": "0x00000",
                "flowinfo": "0x00000000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 11,
        "ifname": "ip6gre0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1448,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "gre6",
        "address": "00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00",
        "broadcast": "00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6gre",
            "info_data": {
                "remote": "any",
                "local": "any",
                "ttl": 0,
                "encap_limit": 0,
                "flowlabel": "0x00000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 12,
        "ifname": "tun6",
        "link": null,
        "flags": ["POINTOPOINT","NOARP"],
        "mtu": 1448,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "gre6",
        "address": "20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01",
        "link_pointtopoint": true,
        "broadcast": "20:01:0d:b8:85:a3:00:00:00:00:8a:2e:03:70:73:34",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6gre",
            "info_data": {
                "remote": "2001:db8:85a3::8a2e:370:7334",
                "local": "2001:db8:1::1",
                "ttl": 64,
                "encap_limit": 4,
                "flowlabel": "0x00000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>
This commit is contained in:
Julien Fortin 2017-08-17 10:36:09 -07:00 committed by Stephen Hemminger
parent 6856fb6548
commit 1facc1c61c
1 changed files with 122 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

126
ip/link_ip6tnl.c
View File

@ -346,24 +346,28 @@ static void ip6tunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb
if (tb[IFLA_IPTUN_PROTO]) {
switch (rta_getattr_u8(tb[IFLA_IPTUN_PROTO])) {
case IPPROTO_IPIP:
fprintf(f, "ipip6 ");
print_string(PRINT_ANY, "proto", "%s ", "ipip6");
break;
case IPPROTO_IPV6:
fprintf(f, "ip6ip6 ");
print_string(PRINT_ANY, "proto", "%s ", "ip6ip6");
break;
case 0:
fprintf(f, "any ");
print_string(PRINT_ANY, "proto", "%s ", "any");
break;
}
}
if (tb[IFLA_IPTUN_REMOTE]) {
fprintf(f, "remote %s ",
print_string(PRINT_ANY,
"remote",
"remote %s ",
rt_addr_n2a_rta(AF_INET6, tb[IFLA_IPTUN_REMOTE]));
}
if (tb[IFLA_IPTUN_LOCAL]) {
fprintf(f, "local %s ",
print_string(PRINT_ANY,
"local",
"local %s ",
rt_addr_n2a_rta(AF_INET6, tb[IFLA_IPTUN_LOCAL]));
}
@ -372,67 +376,134 @@ static void ip6tunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb
const char *n = if_indextoname(link, s2);
if (n)
fprintf(f, "dev %s ", n);
print_string(PRINT_ANY, "link", "dev %s ", n);
else
fprintf(f, "dev %u ", link);
print_uint(PRINT_ANY, "link_index", "dev %u ", link);
}
if (flags & IP6_TNL_F_IGN_ENCAP_LIMIT)
printf("encaplimit none ");
print_bool(PRINT_ANY,
"ip6_tnl_f_ign_encap_limit",
"encaplimit none ",
true);
else if (tb[IFLA_IPTUN_ENCAP_LIMIT])
fprintf(f, "encaplimit %u ",
print_uint(PRINT_ANY,
"encap_limit",
"encaplimit %u ",
rta_getattr_u8(tb[IFLA_IPTUN_ENCAP_LIMIT]));
if (tb[IFLA_IPTUN_TTL])
fprintf(f, "hoplimit %u ", rta_getattr_u8(tb[IFLA_IPTUN_TTL]));
print_uint(PRINT_ANY,
"ttl",
"hoplimit %u ",
rta_getattr_u8(tb[IFLA_IPTUN_TTL]));
if (flags & IP6_TNL_F_USE_ORIG_TCLASS)
printf("tclass inherit ");
print_bool(PRINT_ANY,
"ip6_tnl_f_use_orig_tclass",
"tclass inherit ",
true);
else if (tb[IFLA_IPTUN_FLOWINFO]) {
__u32 val = ntohl(flowinfo & IP6_FLOWINFO_TCLASS);
if (is_json_context()) {
SPRINT_BUF(b1);
snprintf(b1, sizeof(b1), "0x%02x", (__u8)(val >> 20));
print_string(PRINT_JSON, "flowinfo_tclass", NULL, b1);
} else {
printf("tclass 0x%02x ", (__u8)(val >> 20));
}
}
if (flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
printf("flowlabel inherit ");
else
printf("flowlabel 0x%05x ", ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL));
if (flags & IP6_TNL_F_USE_ORIG_FLOWLABEL) {
print_bool(PRINT_ANY,
"ip6_tnl_f_use_orig_flowlabel",
"flowlabel inherit ",
true);
} else {
if (is_json_context()) {
SPRINT_BUF(b1);
snprintf(b1, sizeof(b1), "0x%05x",
ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL));
print_string(PRINT_JSON, "flowlabel", NULL, b1);
} else {
printf("flowlabel 0x%05x ",
ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL));
}
}
if (is_json_context()) {
SPRINT_BUF(flwinfo);
snprintf(flwinfo, sizeof(flwinfo), "0x%08x", ntohl(flowinfo));
print_string(PRINT_JSON, "flowinfo", NULL, flwinfo);
} else {
printf("(flowinfo 0x%08x) ", ntohl(flowinfo));
}
if (flags & IP6_TNL_F_RCV_DSCP_COPY)
printf("dscp inherit ");
print_bool(PRINT_ANY,
"ip6_tnl_f_rcv_dscp_copy",
"dscp inherit ",
true);
if (flags & IP6_TNL_F_MIP6_DEV)
fprintf(f, "mip6 ");
print_bool(PRINT_ANY, "ip6_tnl_f_mip6_dev", "mip6 ", true);
if (flags & IP6_TNL_F_USE_ORIG_FWMARK)
fprintf(f, "fwmark inherit ");
else if (tb[IFLA_IPTUN_FWMARK] && rta_getattr_u32(tb[IFLA_IPTUN_FWMARK]))
fprintf(f, "fwmark 0x%x ", rta_getattr_u32(tb[IFLA_IPTUN_FWMARK]));
if (flags & IP6_TNL_F_USE_ORIG_FWMARK) {
print_bool(PRINT_ANY,
"ip6_tnl_f_use_orig_fwmark",
"fwmark inherit ",
true);
} else if (tb[IFLA_IPTUN_FWMARK]) {
__u32 fwmark = rta_getattr_u32(tb[IFLA_IPTUN_FWMARK]);
if (fwmark) {
SPRINT_BUF(b1);
snprintf(b1, sizeof(b1), "0x%x", fwmark);
print_string(PRINT_ANY, "fwmark", "fwmark %s ", b1);
}
}
if (tb[IFLA_IPTUN_ENCAP_TYPE] &&
rta_getattr_u16(tb[IFLA_IPTUN_ENCAP_TYPE]) !=
TUNNEL_ENCAP_NONE) {
rta_getattr_u16(tb[IFLA_IPTUN_ENCAP_TYPE]) != TUNNEL_ENCAP_NONE) {
__u16 type = rta_getattr_u16(tb[IFLA_IPTUN_ENCAP_TYPE]);
__u16 flags = rta_getattr_u16(tb[IFLA_IPTUN_ENCAP_FLAGS]);
__u16 sport = rta_getattr_u16(tb[IFLA_IPTUN_ENCAP_SPORT]);
__u16 dport = rta_getattr_u16(tb[IFLA_IPTUN_ENCAP_DPORT]);
fputs("encap ", f);
open_json_object("encap");
print_string(PRINT_FP, NULL, "encap ", NULL);
switch (type) {
case TUNNEL_ENCAP_FOU:
fputs("fou ", f);
print_string(PRINT_ANY, "type", "%s ", "fou");
break;
case TUNNEL_ENCAP_GUE:
fputs("gue ", f);
print_string(PRINT_ANY, "type", "%s ", "gue");
break;
default:
fputs("unknown ", f);
print_null(PRINT_ANY, "type", "unknown ", NULL);
break;
}
if (is_json_context()) {
print_uint(PRINT_JSON,
"sport",
NULL,
sport ? ntohs(sport) : 0);
print_uint(PRINT_JSON, "dport", NULL, ntohs(dport));
print_bool(PRINT_JSON, "csum", NULL,
flags & TUNNEL_ENCAP_FLAG_CSUM);
print_bool(PRINT_JSON, "csum6", NULL,
flags & TUNNEL_ENCAP_FLAG_CSUM6);
print_bool(PRINT_JSON, "remcsum", NULL,
flags & TUNNEL_ENCAP_FLAG_REMCSUM);
close_json_object();
} else {
if (sport == 0)
fputs("encap-sport auto ", f);
else
@ -455,6 +526,7 @@ static void ip6tunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb
else
fputs("noencap-remcsum ", f);
}
}
}
static void ip6tunnel_print_help(struct link_util *lu, int argc, char **argv,