ifconfig.tproj/ifbond.c

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*
  25  * ifbond.c
  26  * - add and remove interfaces from a bond interface
  27  */
  28
  29 /*
  30  * Modification History:
  31  *
  32  * July 14, 2004        Dieter Siegmund (dieter@apple.com)
  33  * - created
  34  */
  35
  36 #include <sys/param.h>
  37 #include <sys/ioctl.h>
  38 #include <sys/socket.h>
  39
  40 #include <stdlib.h>
  41 #include <unistd.h>
  42
  43 #include <net/ethernet.h>
  44 #include <net/if.h>
  45 #include <net/if_var.h>
  46 #include <net/if_bond_var.h>
  47
  48 #include <net/route.h>
  49
  50 #include <ctype.h>
  51 #include <stdio.h>
  52 #include <string.h>
  53 #include <stdlib.h>
  54 #include <unistd.h>
  55 #include <err.h>
  56 #include <errno.h>
  57
  58 #include "ifconfig.h"
  59 extern int bond_details;
  60
  61 #define EA_FORMAT       "%02x:%02x:%02x:%02x:%02x:%02x"
  62 #define EA_CH(e, i)     ((u_char)((u_char *)(e))[(i)])
  63 #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)
  64
  65 static __inline__ const char *
  66 selected_state_string(u_char s)
  67 {
  68         static const char * names[] = { "unselected", "selected", "standby" };
  69
  70         if (s <= IF_BOND_STATUS_SELECTED_STATE_STANDBY) {
  71                 return (names[s]);
  72         }
  73         return ("<unknown>");
  74 }
  75
  76 static void
  77 bond_print_details(struct if_bond_status * ibs_p, int count)
  78
  79 {
  80         int                             i;
  81         struct if_bond_status *         scan_p = ibs_p;
  82
  83         for (i = 0; i < count; i++, scan_p++) {
  84                 struct if_bond_partner_state *  ps;
  85                 ps = &scan_p->ibs_partner_state;
  86                 printf("\tbond interface: %s priority: 0x%04x "
  87                        "state: 0x%02x partner system: 0x%04x,"
  88                        EA_FORMAT " "
  89                        "key: 0x%04x port: 0x%04x priority: 0x%04x "
  90                        "state: 0x%02x\n",
  91                        scan_p->ibs_if_name, scan_p->ibs_port_priority,
  92                        scan_p->ibs_state, ps->ibps_system_priority,
  93                        EA_LIST(&ps->ibps_system), ps->ibps_key,
  94                        ps->ibps_port, ps->ibps_port_priority,
  95                        ps->ibps_state);
  96         }
  97         return;
  98 }
  99
 100 void
 101 bond_status(int s, struct rt_addrinfo * info __unused)
 102 {
 103         int                             i;
 104         struct if_bond_req              ibr;
 105         struct if_bond_status *         ibs_p;
 106         struct if_bond_status_req *     ibsr_p;
 107
 108         bzero((char *)&ibr, sizeof(ibr));
 109         ibr.ibr_op = IF_BOND_OP_GET_STATUS;
 110         ibsr_p = &ibr.ibr_ibru.ibru_status;
 111         ibsr_p->ibsr_version = IF_BOND_STATUS_REQ_VERSION;
 112         ifr.ifr_data = (caddr_t)&ibr;
 113
 114         /* how many of them are there? */
 115         if (ioctl(s, SIOCGIFBOND, (caddr_t)&ifr) < 0) {
 116                 return;
 117         }
 118         if (ibsr_p->ibsr_total == 0) {
 119                 if (bond_details) {
 120                         printf("\tbond key: 0x%04x interfaces: <none>\n",
 121                                ibsr_p->ibsr_key);
 122                 }
 123                 else {
 124                         printf("\tbond interfaces: <none>\n");
 125                 }
 126                 return;
 127         }
 128         ibsr_p->ibsr_buffer
 129                 = (char *)malloc(sizeof(struct if_bond_status)
 130                                  * ibsr_p->ibsr_total);
 131         ibsr_p->ibsr_count = ibsr_p->ibsr_total;
 132
 133         /* get the list */
 134         if (ioctl(s, SIOCGIFBOND, (caddr_t)&ifr) < 0) {
 135                 goto done;
 136         }
 137         if (ibsr_p->ibsr_total > 0) {
 138                 if (bond_details) {
 139                         printf("\tbond key: 0x%04x interfaces:",
 140                                ibsr_p->ibsr_key);
 141                 }
 142                 else {
 143                         printf("\tbond interfaces:");
 144                 }
 145                 ibs_p = (struct if_bond_status *)ibsr_p->ibsr_buffer;
 146                 for (i = 0; i < ibsr_p->ibsr_total; i++, ibs_p++) {
 147                         printf(" %s", ibs_p->ibs_if_name);
 148                         if (bond_details) {
 149                                 u_char s = ibs_p->ibs_selected_state;
 150                                 printf(" (%s)", selected_state_string(s));
 151                         }
 152                 }
 153                 printf("\n");
 154                 if (bond_details) {
 155                         bond_print_details((struct if_bond_status *)
 156                                            ibsr_p->ibsr_buffer,
 157                                            ibsr_p->ibsr_total);
 158                 }
 159         }
 160         else if (bond_details) {
 161                 printf("\tbond key: 0x%04x interfaces: <none>\n",
 162                        ibsr_p->ibsr_key);
 163         }
 164         else {
 165                 printf("\tbond interfaces: <none>\n");
 166         }
 167
 168  done:
 169         free(ibsr_p->ibsr_buffer);
 170         return;
 171 }
 172
 173 void
 174 setbonddev(const char *val, int d, int s, const struct afswtch * afp)
 175 {
 176         struct if_bond_req              ibr;
 177
 178         bzero((char *)&ibr, sizeof(ibr));
 179         if ((unsigned int)snprintf(ibr.ibr_ibru.ibru_if_name,
 180                                    sizeof(ibr.ibr_ibru.ibru_if_name),
 181                                    "%s", val) >= IFNAMSIZ) {
 182                 errx(1, "interface name too long");
 183         }
 184         ibr.ibr_op = IF_BOND_OP_ADD_INTERFACE;
 185         ifr.ifr_data = (caddr_t)&ibr;
 186         if (ioctl(s, SIOCSIFBOND, (caddr_t)&ifr) == -1)
 187                 err(1, "SIOCSIFBOND add interface");
 188
 189         return;
 190 }
 191
 192 void
 193 unsetbonddev(const char *val, int d, int s, const struct afswtch * afp)
 194 {
 195         struct if_bond_req              ibr;
 196
 197         bzero((char *)&ibr, sizeof(ibr));
 198         if ((unsigned int)snprintf(ibr.ibr_ibru.ibru_if_name,
 199                                    sizeof(ibr.ibr_ibru.ibru_if_name),
 200                                    "%s", val) >= IFNAMSIZ) {
 201                 errx(1, "interface name too long");
 202         }
 203         ibr.ibr_op = IF_BOND_OP_REMOVE_INTERFACE;
 204         ifr.ifr_data = (caddr_t)&ibr;
 205         if (ioctl(s, SIOCSIFBOND, (caddr_t)&ifr) == -1)
 206                 err(1, "SIOCSIFBOND remove interface");
 207
 208         return;
 209 }
 210