#include "libgenl.h"
#include "utils.h"
#include "ip_common.h"
+#include "json_print.h"
static void usage(void)
{
- fprintf(stderr, "Usage: ip fou add port PORT { ipproto PROTO | gue }\n");
- fprintf(stderr, " ip fou del port PORT\n");
- fprintf(stderr, "\n");
- fprintf(stderr, "Where: PROTO { ipproto-name | 1..255 }\n");
- fprintf(stderr, " PORT { 1..65535 }\n");
+ fprintf(stderr,
+ "Usage: ip fou add port PORT { ipproto PROTO | gue } [ -6 ]\n"
+ " ip fou del port PORT [ -6 ]\n"
+ " ip fou show\n"
+ "\n"
+ "Where: PROTO { ipproto-name | 1..255 }\n"
+ " PORT { 1..65535 }\n");
exit(-1);
}
__u8 ipproto, type;
bool gue_set = false;
int ipproto_set = 0;
+ __u8 family = AF_INET;
while (argc > 0) {
if (!matches(*argv, "port")) {
NEXT_ARG();
- if (get_u16(&port, *argv, 0) || port == 0)
+ if (get_be16(&port, *argv, 0) || port == 0)
invarg("invalid port", *argv);
- port = htons(port);
port_set = 1;
} else if (!matches(*argv, "ipproto")) {
struct protoent *servptr;
ipproto_set = 1;
} else if (!matches(*argv, "gue")) {
gue_set = true;
+ } else if (!matches(*argv, "-6")) {
+ family = AF_INET6;
} else {
- fprintf(stderr, "fou: unknown command \"%s\"?\n", *argv);
+ fprintf(stderr
+ , "fou: unknown command \"%s\"?\n", *argv);
usage();
return -1;
}
addattr16(n, 1024, FOU_ATTR_PORT, port);
addattr8(n, 1024, FOU_ATTR_TYPE, type);
+ addattr8(n, 1024, FOU_ATTR_AF, family);
if (ipproto_set)
addattr8(n, 1024, FOU_ATTR_IPPROTO, ipproto);
fou_parse_opt(argc, argv, &req.n, true);
- if (rtnl_talk(&genl_rth, &req.n, 0, 0, NULL) < 0)
+ if (rtnl_talk(&genl_rth, &req.n, NULL) < 0)
return -2;
return 0;
fou_parse_opt(argc, argv, &req.n, false);
- if (rtnl_talk(&genl_rth, &req.n, 0, 0, NULL) < 0)
+ if (rtnl_talk(&genl_rth, &req.n, NULL) < 0)
return -2;
return 0;
}
-int do_ipfou(int argc, char **argv)
+static int print_fou_mapping(struct nlmsghdr *n, void *arg)
{
- if (genl_family < 0) {
- if (rtnl_open_byproto(&genl_rth, 0, NETLINK_GENERIC) < 0) {
- fprintf(stderr, "Cannot open generic netlink socket\n");
- exit(1);
- }
+ struct genlmsghdr *ghdr;
+ struct rtattr *tb[FOU_ATTR_MAX + 1];
+ int len = n->nlmsg_len;
+
+ if (n->nlmsg_type != genl_family)
+ return 0;
+
+ len -= NLMSG_LENGTH(GENL_HDRLEN);
+ if (len < 0)
+ return -1;
+
+ ghdr = NLMSG_DATA(n);
+ parse_rtattr(tb, FOU_ATTR_MAX, (void *) ghdr + GENL_HDRLEN, len);
+
+ open_json_object(NULL);
+ if (tb[FOU_ATTR_PORT])
+ print_uint(PRINT_ANY, "port", "port %u",
+ ntohs(rta_getattr_u16(tb[FOU_ATTR_PORT])));
+
+ if (tb[FOU_ATTR_TYPE] &&
+ rta_getattr_u8(tb[FOU_ATTR_TYPE]) == FOU_ENCAP_GUE)
+ print_null(PRINT_ANY, "gue", " gue", NULL);
+ else if (tb[FOU_ATTR_IPPROTO])
+ print_uint(PRINT_ANY, "ipproto",
+ " ipproto %u", rta_getattr_u8(tb[FOU_ATTR_IPPROTO]));
+
+ if (tb[FOU_ATTR_AF]) {
+ __u8 family = rta_getattr_u8(tb[FOU_ATTR_AF]);
+
+ print_string(PRINT_JSON, "family", NULL,
+ family_name(family));
+
+ if (family == AF_INET6)
+ print_string(PRINT_FP, NULL,
+ " -6", NULL);
+ }
+ print_string(PRINT_FP, NULL, "\n", NULL);
+ close_json_object();
+
+ return 0;
+}
+
+static int do_show(int argc, char **argv)
+{
+ FOU_REQUEST(req, 4096, FOU_CMD_GET, NLM_F_REQUEST | NLM_F_DUMP);
- genl_family = genl_resolve_family(&genl_rth, FOU_GENL_NAME);
- if (genl_family < 0)
- exit(1);
+ if (argc > 0) {
+ fprintf(stderr,
+ "\"ip fou show\" does not take any arguments.\n");
+ return -1;
+ }
+
+ if (rtnl_send(&genl_rth, &req.n, req.n.nlmsg_len) < 0) {
+ perror("Cannot send show request");
+ exit(1);
+ }
+
+ new_json_obj(json);
+ if (rtnl_dump_filter(&genl_rth, print_fou_mapping, stdout) < 0) {
+ fprintf(stderr, "Dump terminated\n");
+ return 1;
}
+ delete_json_obj();
+ fflush(stdout);
+ return 0;
+}
+
+int do_ipfou(int argc, char **argv)
+{
if (argc < 1)
usage();
+ if (matches(*argv, "help") == 0)
+ usage();
+
+ if (genl_init_handle(&genl_rth, FOU_GENL_NAME, &genl_family))
+ exit(1);
+
if (matches(*argv, "add") == 0)
return do_add(argc-1, argv+1);
if (matches(*argv, "delete") == 0)
return do_del(argc-1, argv+1);
- if (matches(*argv, "help") == 0)
- usage();
+ if (matches(*argv, "show") == 0)
+ return do_show(argc-1, argv+1);
- fprintf(stderr, "Command \"%s\" is unknown, try \"ip fou help\".\n", *argv);
+ fprintf(stderr,
+ "Command \"%s\" is unknown, try \"ip fou help\".\n", *argv);
exit(-1);
}
-