1 /*- 2 */ 3 4 #ifndef lint 5 static const char rcsid[] = 6 "$FreeBSD: head/sbin/ifconfig/iflagg.c 249897 2013-04-25 16:34:04Z glebius $"; 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/lagg/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 32 char lacpbuf[120]; /* LACP peer '[(a,a,a),(p,p,p)]' */ 33 34 static void 35 setlaggport(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 /* Don't choke if the port is already in this lagg. */ 44 if (ioctl(s, SIOCSLAGGPORT, &rp) && errno != EEXIST) 45 err(1, "SIOCSLAGGPORT"); 46 } 47 48 static void 49 unsetlaggport(const char *val, int d, int s, const struct afswtch *afp) 50 { 51 struct lagg_reqport rp; 52 53 bzero(&rp, sizeof(rp)); 54 strlcpy(rp.rp_ifname, name, sizeof(rp.rp_ifname)); 55 strlcpy(rp.rp_portname, val, sizeof(rp.rp_portname)); 56 57 if (ioctl(s, SIOCSLAGGDELPORT, &rp)) 58 err(1, "SIOCSLAGGDELPORT"); 59 } 60 61 static void 62 setlaggproto(const char *val, int d, int s, const struct afswtch *afp) 63 { 64 struct lagg_protos lpr[] = LAGG_PROTOS; 65 struct lagg_reqall ra; 66 int i; 67 68 bzero(&ra, sizeof(ra)); 69 ra.ra_proto = LAGG_PROTO_MAX; 70 71 for (i = 0; i < (sizeof(lpr) / sizeof(lpr[0])); i++) { 72 if (strcmp(val, lpr[i].lpr_name) == 0) { 73 ra.ra_proto = lpr[i].lpr_proto; 74 break; 75 } 76 } 77 if (ra.ra_proto == LAGG_PROTO_MAX) 78 errx(1, "Invalid aggregation protocol: %s", val); 79 80 strlcpy(ra.ra_ifname, name, sizeof(ra.ra_ifname)); 81 if (ioctl(s, SIOCSLAGG, &ra) != 0) 82 err(1, "SIOCSLAGG"); 83 } 84 85 static void 86 setlagghash(const char *val, int d, int s, const struct afswtch *afp) 87 { 88 struct lagg_reqflags rf; 89 char *str, *tmp, *tok; 90 91 92 rf.rf_flags = 0; 93 str = tmp = strdup(val); 94 while ((tok = strsep(&tmp, ",")) != NULL) { 95 if (strcmp(tok, "l2") == 0) 96 rf.rf_flags |= LAGG_F_HASHL2; 97 else if (strcmp(tok, "l3") == 0) 98 rf.rf_flags |= LAGG_F_HASHL3; 99 else if (strcmp(tok, "l4") == 0) 100 rf.rf_flags |= LAGG_F_HASHL4; 101 else 102 errx(1, "Invalid lagghash option: %s", tok); 103 } 104 free(str); 105 if (rf.rf_flags == 0) 106 errx(1, "No lagghash options supplied"); 107 108 strlcpy(rf.rf_ifname, name, sizeof(rf.rf_ifname)); 109 if (ioctl(s, SIOCSLAGGHASH, &rf)) 110 err(1, "SIOCSLAGGHASH"); 111 } 112 113 static char * 114 lacp_format_mac(const uint8_t *mac, char *buf, size_t buflen) 115 { 116 snprintf(buf, buflen, "%02X-%02X-%02X-%02X-%02X-%02X", 117 (int)mac[0], (int)mac[1], (int)mac[2], (int)mac[3], 118 (int)mac[4], (int)mac[5]); 119 120 return (buf); 121 } 122 123 static char * 124 lacp_format_peer(struct lacp_opreq *req, const char *sep) 125 { 126 char macbuf1[20]; 127 char macbuf2[20]; 128 129 snprintf(lacpbuf, sizeof(lacpbuf), 130 "[(%04X,%s,%04X,%04X,%04X),%s(%04X,%s,%04X,%04X,%04X)]", 131 req->actor_prio, 132 lacp_format_mac(req->actor_mac, macbuf1, sizeof(macbuf1)), 133 req->actor_key, req->actor_portprio, req->actor_portno, sep, 134 req->partner_prio, 135 lacp_format_mac(req->partner_mac, macbuf2, sizeof(macbuf2)), 136 req->partner_key, req->partner_portprio, req->partner_portno); 137 138 return(lacpbuf); 139 } 140 141 static void 142 lagg_status(int s) 143 { 144 struct lagg_protos lpr[] = LAGG_PROTOS; 145 struct lagg_reqport rp, rpbuf[LAGG_MAX_PORTS]; 146 struct lagg_reqall ra; 147 struct lagg_reqflags rf; 148 struct lacp_opreq *lp; 149 const char *proto = "<unknown>"; 150 int i, isport = 0; 151 152 bzero(&rp, sizeof(rp)); 153 bzero(&ra, sizeof(ra)); 154 155 strlcpy(rp.rp_ifname, name, sizeof(rp.rp_ifname)); 156 strlcpy(rp.rp_portname, name, sizeof(rp.rp_portname)); 157 158 if (ioctl(s, SIOCGLAGGPORT, &rp) == 0) 159 isport = 1; 160 161 strlcpy(ra.ra_ifname, name, sizeof(ra.ra_ifname)); 162 ra.ra_size = sizeof(rpbuf); 163 ra.ra_port = rpbuf; 164 165 strlcpy(rf.rf_ifname, name, sizeof(rf.rf_ifname)); 166 if (ioctl(s, SIOCGLAGGFLAGS, &rf) != 0) 167 rf.rf_flags = 0; 168 169 if (ioctl(s, SIOCGLAGG, &ra) == 0) { 170 lp = (struct lacp_opreq *)&ra.ra_lacpreq; 171 172 for (i = 0; i < (sizeof(lpr) / sizeof(lpr[0])); i++) { 173 if (ra.ra_proto == lpr[i].lpr_proto) { 174 proto = lpr[i].lpr_name; 175 break; 176 } 177 } 178 179 printf("\tlaggproto %s", proto); 180 if (rf.rf_flags & LAGG_F_HASHMASK) { 181 const char *sep = ""; 182 183 printf(" lagghash "); 184 if (rf.rf_flags & LAGG_F_HASHL2) { 185 printf("%sl2", sep); 186 sep = ","; 187 } 188 if (rf.rf_flags & LAGG_F_HASHL3) { 189 printf("%sl3", sep); 190 sep = ","; 191 } 192 if (rf.rf_flags & LAGG_F_HASHL4) { 193 printf("%sl4", sep); 194 sep = ","; 195 } 196 } 197 if (isport) 198 printf(" laggdev %s", rp.rp_ifname); 199 putchar('\n'); 200 if (verbose && ra.ra_proto == LAGG_PROTO_LACP) 201 printf("\tlag id: %s\n", 202 lacp_format_peer(lp, "\n\t\t ")); 203 204 for (i = 0; i < ra.ra_ports; i++) { 205 lp = (struct lacp_opreq *)&rpbuf[i].rp_lacpreq; 206 printf("\tlaggport: %s ", rpbuf[i].rp_portname); 207 printb("flags", rpbuf[i].rp_flags, LAGG_PORT_BITS); 208 if (verbose && ra.ra_proto == LAGG_PROTO_LACP) 209 printf(" state=%X", lp->actor_state); 210 putchar('\n'); 211 if (verbose && ra.ra_proto == LAGG_PROTO_LACP) 212 printf("\t\t%s\n", 213 lacp_format_peer(lp, "\n\t\t ")); 214 } 215 216 if (0 /* XXX */) { 217 printf("\tsupported aggregation protocols:\n"); 218 for (i = 0; i < (sizeof(lpr) / sizeof(lpr[0])); i++) 219 printf("\t\tlaggproto %s\n", lpr[i].lpr_name); 220 } 221 } 222 } 223 224 static struct cmd lagg_cmds[] = { 225 DEF_CMD_ARG("laggport", setlaggport), 226 DEF_CMD_ARG("-laggport", unsetlaggport), 227 DEF_CMD_ARG("laggproto", setlaggproto), 228 DEF_CMD_ARG("lagghash", setlagghash), 229 }; 230 static struct afswtch af_lagg = { 231 .af_name = "af_lagg", 232 .af_af = AF_UNSPEC, 233 .af_other_status = lagg_status, 234 }; 235 236 static __constructor(101) void 237 lagg_ctor(void) 238 { 239 #define N(a) (sizeof(a) / sizeof(a[0])) 240 int i; 241 242 for (i = 0; i < N(lagg_cmds); i++) 243 cmd_register(&lagg_cmds[i]); 244 af_register(&af_lagg); 245 #undef N 246 } 247