iflagg.c revision 171247 
1/*-
2 */
3
4#ifndef lint
5static const char rcsid[] =
6  "$FreeBSD: head/sbin/ifconfig/iflagg.c 171247 2007-07-05 09:18:57Z thompsa $";
7#endif /* not lint */
8
9#include <sys/param.h>
10#include <sys/ioctl.h>
11#include <sys/socket.h>
12#include <sys/sockio.h>
13
14#include <stdlib.h>
15#include <unistd.h>
16
17#include <net/ethernet.h>
18#include <net/if.h>
19#include <net/if_lagg.h>
20#include <net/route.h>
21
22#include <ctype.h>
23#include <stdio.h>
24#include <string.h>
25#include <stdlib.h>
26#include <unistd.h>
27#include <err.h>
28#include <errno.h>
29
30#include "ifconfig.h"
31
32char lacpbuf[120];	/* LACP peer '[(a,a,a),(p,p,p)]' */
33
34static void
35setlaggport(const char *val, int d, int s, const struct afswtch *afp)
36{
37	struct lagg_reqport rp;
38
39	bzero(&rp, sizeof(rp));
40	strlcpy(rp.rp_ifname, name, sizeof(rp.rp_ifname));
41	strlcpy(rp.rp_portname, val, sizeof(rp.rp_portname));
42
43	if (ioctl(s, SIOCSLAGGPORT, &rp))
44		err(1, "SIOCSLAGGPORT");
45}
46
47static void
48unsetlaggport(const char *val, int d, int s, const struct afswtch *afp)
49{
50	struct lagg_reqport rp;
51
52	bzero(&rp, sizeof(rp));
53	strlcpy(rp.rp_ifname, name, sizeof(rp.rp_ifname));
54	strlcpy(rp.rp_portname, val, sizeof(rp.rp_portname));
55
56	if (ioctl(s, SIOCSLAGGDELPORT, &rp))
57		err(1, "SIOCSLAGGDELPORT");
58}
59
60static void
61setlaggproto(const char *val, int d, int s, const struct afswtch *afp)
62{
63	struct lagg_protos lpr[] = LAGG_PROTOS;
64	struct lagg_reqall ra;
65	int i;
66
67	bzero(&ra, sizeof(ra));
68	ra.ra_proto = LAGG_PROTO_MAX;
69
70	for (i = 0; i < (sizeof(lpr) / sizeof(lpr[0])); i++) {
71		if (strcmp(val, lpr[i].lpr_name) == 0) {
72			ra.ra_proto = lpr[i].lpr_proto;
73			break;
74		}
75	}
76	if (ra.ra_proto == LAGG_PROTO_MAX)
77		errx(1, "Invalid aggregation protocol: %s", val);
78
79	strlcpy(ra.ra_ifname, name, sizeof(ra.ra_ifname));
80	if (ioctl(s, SIOCSLAGG, &ra) != 0)
81		err(1, "SIOCSLAGG");
82}
83
84static char *
85lacp_format_mac(const uint8_t *mac, char *buf, size_t buflen)
86{
87	snprintf(buf, buflen, "%02X-%02X-%02X-%02X-%02X-%02X",
88	    (int)mac[0], (int)mac[1], (int)mac[2], (int)mac[3],
89	    (int)mac[4], (int)mac[5]);
90
91	return (buf);
92}
93
94static char *
95lacp_format_peer(struct lacp_opreq *req, const char *sep)
96{
97	char macbuf1[20];
98	char macbuf2[20];
99
100	snprintf(lacpbuf, sizeof(lacpbuf),
101	    "[(%04X,%s,%04X,%04X,%04X),%s(%04X,%s,%04X,%04X,%04X)]",
102	    req->actor_prio,
103	    lacp_format_mac(req->actor_mac, macbuf1, sizeof(macbuf1)),
104	    req->actor_key, req->actor_portprio, req->actor_portno, sep,
105	    req->partner_prio,
106	    lacp_format_mac(req->partner_mac, macbuf2, sizeof(macbuf2)),
107	    req->partner_key, req->partner_portprio, req->partner_portno);
108
109	return(lacpbuf);
110}
111
112static void
113lagg_status(int s)
114{
115	struct lagg_protos lpr[] = LAGG_PROTOS;
116	struct lagg_reqport rp, rpbuf[LAGG_MAX_PORTS];
117	struct lagg_reqall ra;
118	struct lacp_opreq *lp;
119	const char *proto = "<unknown>";
120	int i, isport = 0;
121
122	bzero(&rp, sizeof(rp));
123	bzero(&ra, sizeof(ra));
124
125	strlcpy(rp.rp_ifname, name, sizeof(rp.rp_ifname));
126	strlcpy(rp.rp_portname, name, sizeof(rp.rp_portname));
127
128	if (ioctl(s, SIOCGLAGGPORT, &rp) == 0)
129		isport = 1;
130
131	strlcpy(ra.ra_ifname, name, sizeof(ra.ra_ifname));
132	ra.ra_size = sizeof(rpbuf);
133	ra.ra_port = rpbuf;
134
135	if (ioctl(s, SIOCGLAGG, &ra) == 0) {
136		lp = (struct lacp_opreq *)&ra.ra_lacpreq;
137
138		for (i = 0; i < (sizeof(lpr) / sizeof(lpr[0])); i++) {
139			if (ra.ra_proto == lpr[i].lpr_proto) {
140				proto = lpr[i].lpr_name;
141				break;
142			}
143		}
144
145		printf("\tlaggproto %s", proto);
146		if (isport)
147			printf(" laggdev %s", rp.rp_ifname);
148		putchar('\n');
149		if (verbose && ra.ra_proto == LAGG_PROTO_LACP)
150			printf("\tlag id: %s\n",
151			    lacp_format_peer(lp, "\n\t\t "));
152
153		for (i = 0; i < ra.ra_ports; i++) {
154			lp = (struct lacp_opreq *)&rpbuf[i].rp_lacpreq;
155			printf("\tlaggport: %s ", rpbuf[i].rp_portname);
156			printb("flags", rpbuf[i].rp_flags, LAGG_PORT_BITS);
157			if (verbose && ra.ra_proto == LAGG_PROTO_LACP)
158				printf(" state=%X", lp->actor_state);
159			putchar('\n');
160			if (verbose && ra.ra_proto == LAGG_PROTO_LACP)
161				printf("\t\t%s\n",
162				    lacp_format_peer(lp, "\n\t\t "));
163		}
164
165		if (0 /* XXX */) {
166			printf("\tsupported aggregation protocols:\n");
167			for (i = 0; i < (sizeof(lpr) / sizeof(lpr[0])); i++)
168				printf("\t\tlaggproto %s\n", lpr[i].lpr_name);
169		}
170	} else if (isport)
171		printf("\tlagg: laggdev %s\n", rp.rp_ifname);
172}
173
174static struct cmd lagg_cmds[] = {
175	DEF_CMD_ARG("laggport",		setlaggport),
176	DEF_CMD_ARG("-laggport",	unsetlaggport),
177	DEF_CMD_ARG("laggproto",	setlaggproto),
178};
179static struct afswtch af_lagg = {
180	.af_name	= "af_lagg",
181	.af_af		= AF_UNSPEC,
182	.af_other_status = lagg_status,
183};
184
185static __constructor void
186lagg_ctor(void)
187{
188#define	N(a)	(sizeof(a) / sizeof(a[0]))
189	int i;
190
191	for (i = 0; i < N(lagg_cmds);  i++)
192		cmd_register(&lagg_cmds[i]);
193	af_register(&af_lagg);
194#undef N
195}
196