ifconfig.tproj/ifbond.c

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 /*
  24  * ifbond.c
  25  * - add and remove interfaces from a bond interface
  26  */
  27
  28 /*
  29  * Modification History:
  30  *
  31  * July 14, 2004        Dieter Siegmund (dieter@apple.com)
  32  * - created
  33  */
  34
  35 #include <sys/param.h>
  36 #include <sys/ioctl.h>
  37 #include <sys/socket.h>
  38
  39 #include <stdlib.h>
  40 #include <unistd.h>
  41
  42 #include <net/ethernet.h>
  43 #include <net/if.h>
  44 #include <net/if_var.h>
  45 #include <net/if_bond_var.h>
  46
  47 #include <net/route.h>
  48
  49 #include <ctype.h>
  50 #include <stdio.h>
  51 #include <string.h>
  52 #include <stdlib.h>
  53 #include <unistd.h>
  54 #include <err.h>
  55 #include <errno.h>
  56
  57 #include "ifconfig.h"
  58 extern int bond_details;
  59
  60 #define EA_FORMAT       "%02x:%02x:%02x:%02x:%02x:%02x"
  61 #define EA_CH(e, i)     ((u_char)((u_char *)(e))[(i)])
  62 #define EA_LIST(ea)     EA_CH(ea,0),EA_CH(ea,1),EA_CH(ea,2),EA_CH(ea,3),EA_CH(ea,4),EA_CH(ea,5)
  63
  64 static __inline__ const char *
  65 selected_state_string(u_char s)
  66 {
  67         static const char * names[] = { "unselected", "selected", "standby" };
  68
  69         if (s <= IF_BOND_STATUS_SELECTED_STATE_STANDBY) {
  70                 return (names[s]);
  71         }
  72         return ("<unknown>");
  73 }
  74
  75 static void
  76 bond_print_details(struct if_bond_status * ibs_p, int count)
  77
  78 {
  79         int                             i;
  80         struct if_bond_status *         scan_p = ibs_p;
  81
  82         for (i = 0; i < count; i++, scan_p++) {
  83                 struct if_bond_partner_state *  ps;
  84                 ps = &scan_p->ibs_partner_state;
  85                 printf("\tbond interface: %s priority: 0x%04x "
  86                        "state: 0x%02x partner system: 0x%04x,"
  87                        EA_FORMAT " "
  88                        "key: 0x%04x port: 0x%04x priority: 0x%04x "
  89                        "state: 0x%02x\n",
  90                        scan_p->ibs_if_name, scan_p->ibs_port_priority,
  91                        scan_p->ibs_state, ps->ibps_system_priority,
  92                        EA_LIST(&ps->ibps_system), ps->ibps_key,
  93                        ps->ibps_port, ps->ibps_port_priority,
  94                        ps->ibps_state);
  95         }
  96         return;
  97 }
  98
  99 void
 100 bond_status(int s, struct rt_addrinfo * info __unused)
 101 {
 102         int                             i;
 103         struct if_bond_req              ibr;
 104         struct if_bond_status *         ibs_p;
 105         struct if_bond_status_req *     ibsr_p;
 106
 107         bzero((char *)&ibr, sizeof(ibr));
 108         ibr.ibr_op = IF_BOND_OP_GET_STATUS;
 109         ibsr_p = &ibr.ibr_ibru.ibru_status;
 110         ibsr_p->ibsr_version = IF_BOND_STATUS_REQ_VERSION;
 111         ifr.ifr_data = (caddr_t)&ibr;
 112
 113         /* how many of them are there? */
 114         if (ioctl(s, SIOCGIFBOND, (caddr_t)&ifr) < 0) {
 115                 return;
 116         }
 117         if (ibsr_p->ibsr_total == 0) {
 118                 if (bond_details) {
 119                         printf("\tbond key: 0x%04x interfaces: <none>\n",
 120                                ibsr_p->ibsr_key);
 121                 }
 122                 else {
 123                         printf("\tbond interfaces: <none>\n");
 124                 }
 125                 return;
 126         }
 127         ibsr_p->ibsr_buffer
 128                 = (char *)malloc(sizeof(struct if_bond_status)
 129                                  * ibsr_p->ibsr_total);
 130         ibsr_p->ibsr_count = ibsr_p->ibsr_total;
 131
 132         /* get the list */
 133         if (ioctl(s, SIOCGIFBOND, (caddr_t)&ifr) < 0) {
 134                 goto done;
 135         }
 136         if (ibsr_p->ibsr_total > 0) {
 137                 if (bond_details) {
 138                         printf("\tbond key: 0x%04x interfaces:",
 139                                ibsr_p->ibsr_key);
 140                 }
 141                 else {
 142                         printf("\tbond interfaces:");
 143                 }
 144                 ibs_p = (struct if_bond_status *)ibsr_p->ibsr_buffer;
 145                 for (i = 0; i < ibsr_p->ibsr_total; i++, ibs_p++) {
 146                         printf(" %s", ibs_p->ibs_if_name);
 147                         if (bond_details) {
 148                                 u_char s = ibs_p->ibs_selected_state;
 149                                 printf(" (%s)", selected_state_string(s));
 150                         }
 151                 }
 152                 printf("\n");
 153                 if (bond_details) {
 154                         bond_print_details((struct if_bond_status *)
 155                                            ibsr_p->ibsr_buffer,
 156                                            ibsr_p->ibsr_total);
 157                 }
 158         }
 159         else if (bond_details) {
 160                 printf("\tbond key: 0x%04x interfaces: <none>\n",
 161                        ibsr_p->ibsr_key);
 162         }
 163         else {
 164                 printf("\tbond interfaces: <none>\n");
 165         }
 166
 167  done:
 168         free(ibsr_p->ibsr_buffer);
 169         return;
 170 }
 171
 172 void
 173 setbonddev(const char *val, int d, int s, const struct afswtch * afp)
 174 {
 175         struct if_bond_req              ibr;
 176
 177         bzero((char *)&ibr, sizeof(ibr));
 178         if ((unsigned int)snprintf(ibr.ibr_ibru.ibru_if_name,
 179                                    sizeof(ibr.ibr_ibru.ibru_if_name),
 180                                    "%s", val) >= IFNAMSIZ) {
 181                 errx(1, "interface name too long");
 182         }
 183         ibr.ibr_op = IF_BOND_OP_ADD_INTERFACE;
 184         ifr.ifr_data = (caddr_t)&ibr;
 185         if (ioctl(s, SIOCSIFBOND, (caddr_t)&ifr) == -1)
 186                 err(1, "SIOCSIFBOND add interface");
 187
 188         return;
 189 }
 190
 191 void
 192 unsetbonddev(const char *val, int d, int s, const struct afswtch * afp)
 193 {
 194         struct if_bond_req              ibr;
 195
 196         bzero((char *)&ibr, sizeof(ibr));
 197         if ((unsigned int)snprintf(ibr.ibr_ibru.ibru_if_name,
 198                                    sizeof(ibr.ibr_ibru.ibru_if_name),
 199                                    "%s", val) >= IFNAMSIZ) {
 200                 errx(1, "interface name too long");
 201         }
 202         ibr.ibr_op = IF_BOND_OP_REMOVE_INTERFACE;
 203         ifr.ifr_data = (caddr_t)&ibr;
 204         if (ioctl(s, SIOCSIFBOND, (caddr_t)&ifr) == -1)
 205                 err(1, "SIOCSIFBOND remove interface");
 206
 207         return;
 208 }
 209