#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <net/route.h>
#include <net/ethernet.h>
#include <net/lagg/if_lagg.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>
#include <unistd.h>
#include <err.h>
#include <errno.h>
#include "ifconfig.h"
static char lacpbuf[120];
static void
setlaggport(const char *val, int d __unused, int s,
const struct afswtch *afp __unused)
{
struct lagg_reqport rp;
memset(&rp, 0, sizeof(rp));
strlcpy(rp.rp_ifname, IfName, sizeof(rp.rp_ifname));
strlcpy(rp.rp_portname, val, sizeof(rp.rp_portname));
if (ioctl(s, SIOCSLAGGPORT, &rp) && errno != EEXIST) {
warnx("%s %s: SIOCSLAGGPORT: %s",
IfName, val, strerror(errno));
exit_code = 1;
}
}
static void
unsetlaggport(const char *val, int d __unused, int s,
const struct afswtch *afp __unused)
{
struct lagg_reqport rp;
memset(&rp, 0, sizeof(rp));
strlcpy(rp.rp_ifname, IfName, sizeof(rp.rp_ifname));
strlcpy(rp.rp_portname, val, sizeof(rp.rp_portname));
if (ioctl(s, SIOCSLAGGDELPORT, &rp))
err(1, "SIOCSLAGGDELPORT");
}
static void
setlaggproto(const char *val, int d __unused, int s,
const struct afswtch *afp __unused)
{
struct lagg_protos lpr[] = LAGG_PROTOS;
struct lagg_reqall ra;
size_t i;
memset(&ra, 0, sizeof(ra));
ra.ra_proto = LAGG_PROTO_MAX;
for (i = 0; i < nitems(lpr); i++) {
if (strcmp(val, lpr[i].lpr_name) == 0) {
ra.ra_proto = lpr[i].lpr_proto;
break;
}
}
if (ra.ra_proto == LAGG_PROTO_MAX)
errx(1, "Invalid aggregation protocol: %s", val);
strlcpy(ra.ra_ifname, IfName, sizeof(ra.ra_ifname));
if (ioctl(s, SIOCSLAGG, &ra) != 0)
err(1, "SIOCSLAGG");
}
static void
setlagghash(const char *val, int d __unused, int s,
const struct afswtch *afp __unused)
{
struct lagg_reqflags rf;
char *str, *tmp, *tok;
rf.rf_flags = 0;
str = tmp = strdup(val);
while ((tok = strsep(&tmp, ",")) != NULL) {
if (strcmp(tok, "l2") == 0)
rf.rf_flags |= LAGG_F_HASHL2;
else if (strcmp(tok, "l3") == 0)
rf.rf_flags |= LAGG_F_HASHL3;
else if (strcmp(tok, "l4") == 0)
rf.rf_flags |= LAGG_F_HASHL4;
else
errx(1, "Invalid lagghash option: %s", tok);
}
free(str);
if (rf.rf_flags == 0)
errx(1, "No lagghash options supplied");
strlcpy(rf.rf_ifname, IfName, sizeof(rf.rf_ifname));
if (ioctl(s, SIOCSLAGGHASH, &rf))
err(1, "SIOCSLAGGHASH");
}
static char *
lacp_format_mac(const uint8_t *mac, char *buf, size_t buflen)
{
snprintf(buf, buflen, "%02X-%02X-%02X-%02X-%02X-%02X",
(int)mac[0], (int)mac[1], (int)mac[2], (int)mac[3],
(int)mac[4], (int)mac[5]);
return (buf);
}
static char *
lacp_format_peer(struct lacp_opreq *req, const char *sep)
{
char macbuf1[20];
char macbuf2[20];
snprintf(lacpbuf, sizeof(lacpbuf),
"[(%04X,%s,%04X,%04X,%04X),%s(%04X,%s,%04X,%04X,%04X)]",
req->actor_prio,
lacp_format_mac(req->actor_mac, macbuf1, sizeof(macbuf1)),
req->actor_key, req->actor_portprio, req->actor_portno, sep,
req->partner_prio,
lacp_format_mac(req->partner_mac, macbuf2, sizeof(macbuf2)),
req->partner_key, req->partner_portprio, req->partner_portno);
return(lacpbuf);
}
static void
lagg_status(int s)
{
struct lagg_protos lpr[] = LAGG_PROTOS;
struct lagg_reqport rp, rpbuf[LAGG_MAX_PORTS];
struct lagg_reqall ra;
struct lagg_reqflags rf;
struct lacp_opreq *lp;
const char *proto = "<unknown>";
bool isport = false;
size_t i;
memset(&rp, 0, sizeof(rp));
memset(&ra, 0, sizeof(ra));
strlcpy(rp.rp_ifname, IfName, sizeof(rp.rp_ifname));
strlcpy(rp.rp_portname, IfName, sizeof(rp.rp_portname));
if (ioctl(s, SIOCGLAGGPORT, &rp) == 0)
isport = true;
strlcpy(ra.ra_ifname, IfName, sizeof(ra.ra_ifname));
ra.ra_size = sizeof(rpbuf);
ra.ra_port = rpbuf;
strlcpy(rf.rf_ifname, IfName, sizeof(rf.rf_ifname));
if (ioctl(s, SIOCGLAGGFLAGS, &rf) != 0)
rf.rf_flags = 0;
if (ioctl(s, SIOCGLAGG, &ra) == 0) {
lp = (struct lacp_opreq *)&ra.ra_lacpreq;
for (i = 0; i < nitems(lpr); i++) {
if ((int)ra.ra_proto == lpr[i].lpr_proto) {
proto = lpr[i].lpr_name;
break;
}
}
printf("\tlaggproto %s", proto);
if (rf.rf_flags & LAGG_F_HASHMASK) {
const char *sep = "";
printf(" lagghash ");
if (rf.rf_flags & LAGG_F_HASHL2) {
printf("%sl2", sep);
sep = ",";
}
if (rf.rf_flags & LAGG_F_HASHL3) {
printf("%sl3", sep);
sep = ",";
}
if (rf.rf_flags & LAGG_F_HASHL4) {
printf("%sl4", sep);
sep = ",";
}
}
if (isport)
printf(" laggdev %s", rp.rp_ifname);
putchar('\n');
if (verbose && ra.ra_proto == LAGG_PROTO_LACP)
printf("\tlag id: %s\n",
lacp_format_peer(lp, "\n\t\t "));
for (i = 0; i < (size_t)ra.ra_ports; i++) {
lp = (struct lacp_opreq *)&rpbuf[i].rp_lacpreq;
printf("\tlaggport: %s ", rpbuf[i].rp_portname);
printb("flags", rpbuf[i].rp_flags, LAGG_PORT_BITS);
if (verbose && ra.ra_proto == LAGG_PROTO_LACP)
printf(" state=%X", lp->actor_state);
putchar('\n');
if (verbose && ra.ra_proto == LAGG_PROTO_LACP)
printf("\t\t%s\n",
lacp_format_peer(lp, "\n\t\t "));
}
if (0 ) {
printf("\tsupported aggregation protocols:\n");
for (i = 0; i < nitems(lpr); i++)
printf("\t\tlaggproto %s\n", lpr[i].lpr_name);
}
}
}
static struct cmd lagg_cmds[] = {
DEF_CMD_ARG("laggport", setlaggport),
DEF_CMD_ARG("-laggport", unsetlaggport),
DEF_CMD_ARG("laggproto", setlaggproto),
DEF_CMD_ARG("lagghash", setlagghash),
};
static struct afswtch af_lagg = {
.af_name = "af_lagg",
.af_af = AF_UNSPEC,
.af_other_status = lagg_status,
};
__constructor(142)
static void
lagg_ctor(void)
{
size_t i;
for (i = 0; i < nitems(lagg_cmds); i++)
cmd_register(&lagg_cmds[i]);
af_register(&af_lagg);
}
