int do_ipl2tp(int argc, char **argv)
{
if (genl_family < 0) {
if (rtnl_open_byproto(&genl_rth, 0, NETLINK_GENERIC) < 0) {
fprintf(stderr, "Cannot open generic netlink socket\n");
exit(1);
}
genl_family = genl_resolve_family(&genl_rth, L2TP_GENL_NAME);
if (genl_family < 0)
exit(1);
}
if (argc < 1)
usage();
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, "show") == 0 ||
matches(*argv, "lst") == 0 ||
matches(*argv, "list") == 0)
return do_show(argc-1, argv+1);
if (matches(*argv, "help") == 0)
usage();
fprintf(stderr, "Command \"%s\" is unknown, try \"ip l2tp help\".\n", *argv);
exit(-1);
}
int genl_init_handle(struct rtnl_handle *grth, const char *family,
int *genl_family)
{
if (*genl_family >= 0)
return 0;
if (rtnl_open_byproto(grth, 0, NETLINK_GENERIC) < 0) {
fprintf(stderr, "Cannot open generic netlink socket\n");
return -1;
}
*genl_family = genl_resolve_family(grth, family);
if (*genl_family < 0)
return -1;
return 0;
}
static int tcpm_do_cmd(int cmd, int argc, char **argv)
{
TCPM_REQUEST(req, 1024, TCP_METRICS_CMD_GET, NLM_F_REQUEST);
int atype = -1;
int ack;
memset(&f, 0, sizeof(f));
f.addr.bitlen = -1;
f.addr.family = preferred_family;
switch (preferred_family) {
case AF_UNSPEC:
case AF_INET:
case AF_INET6:
break;
default:
fprintf(stderr, "Unsupported protocol family: %d\n", preferred_family);
return -1;
}
for (; argc > 0; argc--, argv++) {
char *who = "address";
if (strcmp(*argv, "addr") == 0 ||
strcmp(*argv, "address") == 0) {
who = *argv;
NEXT_ARG();
}
if (matches(*argv, "help") == 0)
usage();
if (f.addr.bitlen >= 0)
duparg2(who, *argv);
get_prefix(&f.addr, *argv, preferred_family);
if (f.addr.bytelen && f.addr.bytelen * 8 == f.addr.bitlen) {
if (f.addr.family == AF_INET)
atype = TCP_METRICS_ATTR_ADDR_IPV4;
else if (f.addr.family == AF_INET6)
atype = TCP_METRICS_ATTR_ADDR_IPV6;
}
if ((CMD_DEL & cmd) && atype < 0) {
fprintf(stderr, "Error: a specific IP address is expected rather than \"%s\"\n",
*argv);
return -1;
}
argc--; argv++;
}
if (cmd == CMD_DEL && atype < 0)
missarg("address");
/* flush for exact address ? Single del */
if (cmd == CMD_FLUSH && atype >= 0)
cmd = CMD_DEL;
/* flush for all addresses ? Single del without address */
if (cmd == CMD_FLUSH && f.addr.bitlen <= 0 &&
preferred_family == AF_UNSPEC) {
cmd = CMD_DEL;
req.g.cmd = TCP_METRICS_CMD_DEL;
ack = 1;
} else if (cmd == CMD_DEL) {
req.g.cmd = TCP_METRICS_CMD_DEL;
ack = 1;
} else { /* CMD_FLUSH, CMD_LIST */
ack = 0;
}
if (genl_family < 0) {
if (rtnl_open_byproto(&grth, 0, NETLINK_GENERIC) < 0) {
fprintf(stderr, "Cannot open generic netlink socket\n");
exit(1);
}
genl_family = genl_resolve_family(&grth,
TCP_METRICS_GENL_NAME);
if (genl_family < 0)
exit(1);
req.n.nlmsg_type = genl_family;
}
if (!(cmd & CMD_FLUSH) && (atype >= 0 || (cmd & CMD_DEL))) {
if (ack)
req.n.nlmsg_flags |= NLM_F_ACK;
if (atype >= 0)
addattr_l(&req.n, sizeof(req), atype, &f.addr.data,
f.addr.bytelen);
} else {
req.n.nlmsg_flags |= NLM_F_DUMP;
}
f.cmd = cmd;
if (cmd & CMD_FLUSH) {
int round = 0;
char flushb[4096-512];
f.flushb = flushb;
f.flushp = 0;
f.flushe = sizeof(flushb);
for (;;) {
req.n.nlmsg_seq = grth.dump = ++grth.seq;
if (rtnl_send(&grth, &req, req.n.nlmsg_len) < 0) {
perror("Failed to send flush request");
exit(1);
}
f.flushed = 0;
if (rtnl_dump_filter(&grth, process_msg, stdout) < 0) {
fprintf(stderr, "Flush terminated\n");
exit(1);
}
if (f.flushed == 0) {
if (round == 0) {
fprintf(stderr, "Nothing to flush.\n");
} else if (show_stats)
printf("*** Flush is complete after %d round%s ***\n",
round, round > 1 ? "s" : "");
fflush(stdout);
return 0;
}
round++;
if (flush_update() < 0)
exit(1);
if (show_stats) {
printf("\n*** Round %d, deleting %d entries ***\n",
round, f.flushed);
fflush(stdout);
}
}
return 0;
}
if (ack) {
if (rtnl_talk(&grth, &req.n, 0, 0, NULL) < 0)
return -2;
} else if (atype >= 0) {
if (rtnl_talk(&grth, &req.n, 0, 0, &req.n) < 0)
return -2;
if (process_msg(NULL, &req.n, stdout) < 0) {
fprintf(stderr, "Dump terminated\n");
exit(1);
}
} else {
req.n.nlmsg_seq = grth.dump = ++grth.seq;
if (rtnl_send(&grth, &req, req.n.nlmsg_len) < 0) {
perror("Failed to send dump request");
exit(1);
}
if (rtnl_dump_filter(&grth, process_msg, stdout) < 0) {
fprintf(stderr, "Dump terminated\n");
exit(1);
}
}
return 0;
}
static int seg6_do_cmd(void)
{
SEG6_REQUEST(req, 1024, opts.cmd, NLM_F_REQUEST);
int repl = 0, dump = 0;
if (genl_family < 0) {
if (rtnl_open_byproto(&grth, 0, NETLINK_GENERIC) < 0) {
fprintf(stderr, "Cannot open generic netlink socket\n");
exit(1);
}
genl_family = genl_resolve_family(&grth, SEG6_GENL_NAME);
if (genl_family < 0)
exit(1);
req.n.nlmsg_type = genl_family;
}
switch (opts.cmd) {
case SEG6_CMD_SETHMAC:
{
addattr32(&req.n, sizeof(req), SEG6_ATTR_HMACKEYID, opts.keyid);
addattr8(&req.n, sizeof(req), SEG6_ATTR_SECRETLEN,
strlen(opts.pass));
addattr8(&req.n, sizeof(req), SEG6_ATTR_ALGID, opts.alg_id);
if (strlen(opts.pass))
addattr_l(&req.n, sizeof(req), SEG6_ATTR_SECRET,
opts.pass, strlen(opts.pass));
break;
}
case SEG6_CMD_SET_TUNSRC:
addattr_l(&req.n, sizeof(req), SEG6_ATTR_DST, &opts.addr,
sizeof(struct in6_addr));
break;
case SEG6_CMD_DUMPHMAC:
dump = 1;
break;
case SEG6_CMD_GET_TUNSRC:
repl = 1;
break;
}
if (!repl && !dump) {
if (rtnl_talk(&grth, &req.n, NULL, 0) < 0)
return -1;
} else if (repl) {
if (rtnl_talk(&grth, &req.n, &req.n, sizeof(req)) < 0)
return -2;
if (process_msg(NULL, &req.n, stdout) < 0) {
fprintf(stderr, "Error parsing reply\n");
exit(1);
}
} else {
req.n.nlmsg_flags |= NLM_F_DUMP;
req.n.nlmsg_seq = grth.dump = ++grth.seq;
if (rtnl_send(&grth, &req, req.n.nlmsg_len) < 0) {
perror("Failed to send dump request");
exit(1);
}
if (rtnl_dump_filter(&grth, process_msg, stdout) < 0) {
fprintf(stderr, "Dump terminated\n");
exit(1);
}
}
return 0;
}
