1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, Joyent Inc. All rights reserved.
25 */
26
27 #include <stdio.h>
28 #include <door.h>
29 #include <errno.h>
30 #include <strings.h>
31 #include <sys/mman.h>
32 #include <libdladm.h>
33 #include <libdlib.h>
34 #include <libdllink.h>
35
36 extern dladm_status_t dladm_door_fd(dladm_handle_t, int *);
37
38 static dladm_status_t
39 ibd_dladm_door_call(dladm_handle_t handle, void *arg, size_t asize, void *rbuf,
40 size_t rsize)
41 {
42 door_arg_t darg;
43 int door_fd;
44 dladm_status_t status = DLADM_STATUS_OK;
45
46 darg.data_ptr = arg;
47 darg.data_size = asize;
48 darg.desc_ptr = NULL;
49 darg.desc_num = 0;
50 darg.rbuf = rbuf;
51 darg.rsize = rsize;
52
53 /* The door descriptor is opened if it isn't already */
54 if ((status = dladm_door_fd(handle, &door_fd)) != DLADM_STATUS_OK)
55 return (status);
56
57 if (door_call(door_fd, &darg) == -1)
58 return (DLADM_STATUS_FAILED);
59
60 if (darg.rbuf != rbuf) {
61 /*
62 * The size of the input rbuf is not big enough so that
63 * the door allocate the rbuf itself. In this case, simply
64 * think something wrong with the door call.
65 */
66 (void) munmap(darg.rbuf, darg.rsize);
67 return (DLADM_STATUS_TOOSMALL);
68 }
69
70 if (darg.rsize != rsize)
71 return (DLADM_STATUS_FAILED);
72
73 if ((((dlmgmt_retval_t *)rbuf)->lr_err) == 0)
74 return (DLADM_STATUS_OK);
75 else
76 return (DLADM_STATUS_FAILED);
77 }
78
79 static int
80 ibd_delete_link(dladm_handle_t dlh, char *link)
81 {
82 dlmgmt_door_getlinkid_t getlinkid;
83 dlmgmt_getlinkid_retval_t retval;
84 datalink_id_t linkid;
85 dladm_status_t status;
86 char errmsg[DLADM_STRSIZE];
87
88 getlinkid.ld_cmd = DLMGMT_CMD_GETLINKID;
89 (void) strlcpy(getlinkid.ld_link, link, MAXLINKNAMELEN);
90 getlinkid.ld_zoneid = -1;
91
92 if ((status = ibd_dladm_door_call(dlh, &getlinkid, sizeof (getlinkid),
93 &retval, sizeof (retval))) != DLADM_STATUS_OK) {
94 (void) fprintf(stderr,
95 "dladm_door_call failed: %s; linkname = %s\n",
96 dladm_status2str(status, errmsg), link);
97 return (status);
98 }
99
100 if (retval.lr_class != DATALINK_CLASS_PHYS) {
101 (void) fprintf(stderr,
102 "Not a physical link: linkname = %s, class = 0x%x\n",
103 link, (uint_t)retval.lr_class);
104 return (status);
105 }
106
107 linkid = retval.lr_linkid;
108
109 if ((status = dladm_remove_conf(dlh, linkid)) != DLADM_STATUS_OK) {
110 (void) fprintf(stderr, "dladm_remove_conf failed: %s\n",
111 dladm_status2str(status, errmsg));
112 return (status);
113 }
114
115 if ((status = dladm_destroy_datalink_id(dlh, linkid,
116 DLADM_OPT_ACTIVE | DLADM_OPT_PERSIST)) != DLADM_STATUS_OK) {
117 (void) fprintf(stderr, "dladm_destroy_datalink_id failed: %s\n",
118 dladm_status2str(status, errmsg));
119 }
120
121 return (status);
122 }
123
124 int
125 main(int argc, char *argv[])
126 {
127 dladm_handle_t dlh;
128 int i;
129 dladm_status_t status;
130 char errmsg[DLADM_STRSIZE];
131
132 if (argc < 2) {
133 (void) fprintf(stderr,
134 "Usage: ibd_delete_link linkname ...\n");
135 return (2);
136 }
137
138 if ((status = dladm_open(&dlh)) != DLADM_STATUS_OK) {
139 (void) fprintf(stderr, "Failed to open dladm handle: %s\n",
140 dladm_status2str(status, errmsg));
141 return (1);
142 }
143
144 for (i = 1; i < argc; i++) {
145 if (ibd_delete_link(dlh, argv[i]) != DLADM_STATUS_OK) {
146 dladm_close(dlh);
147 return (1);
148 }
149 }
150
151 dladm_close(dlh);
152 return (0);
153 }