2 * Copyright (c) 2009, 2010 Jeff Mahoney <jeffm@suse.com>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <linux/blkpg.h>
31 #include <linux/hdreg.h>
33 /* ioctls <= 114 are present in Linux 2.4. The following ones have been
34 * added since then and headers containing them may not be available on
37 #define BLKTRACE_BDEV_SIZE 32
38 struct blk_user_trace_setup {
39 char name[BLKTRACE_BDEV_SIZE]; /* output */
40 uint16_t act_mask; /* input */
41 uint32_t buf_size; /* input */
42 uint32_t buf_nr; /* input */
49 #define BLKTRACESETUP _IOWR(0x12,115,struct blk_user_trace_setup)
52 #define BLKTRACESTART _IO(0x12,116)
55 #define BLKTRACESTOP _IO(0x12,117)
57 #ifndef BLKTRACETEARDOWN
58 #define BLKTRACETEARDOWN _IO(0x12,118)
61 #define BLKDISCARD _IO(0x12,119)
64 #define BLKIOMIN _IO(0x12,120)
67 #define BLKIOOPT _IO(0x12,121)
70 #define BLKALIGNOFF _IO(0x12,122)
73 #define BLKPBSZGET _IO(0x12,123)
75 #ifndef BLKDISCARDZEROES
76 #define BLKDISCARDZEROES _IO(0x12,124)
79 #define BLKSECDISCARD _IO(0x12,125)
82 static const struct xlat blkpg_ops[] = {
83 { BLKPG_ADD_PARTITION, "BLKPG_ADD_PARTITION", },
84 { BLKPG_DEL_PARTITION, "BLKPG_DEL_PARTITION", },
89 print_blkpg_req(struct tcb *tcp, struct blkpg_ioctl_arg *blkpg)
91 struct blkpg_partition p;
94 printxval(blkpg_ops, blkpg->op, "BLKPG_???");
96 tprintf(", flags=%d, datalen=%d, ",
97 blkpg->flags, blkpg->datalen);
99 if (umove(tcp, (long) blkpg->data, &p) < 0)
100 tprintf("%#lx}", (long) blkpg->data);
102 tprintf("{start=%lld, length=%lld, pno=%d, "
103 "devname=\"%.*s\", volname=\"%.*s\"}}",
104 p.start, p.length, p.pno,
105 (int) sizeof(p.devname), p.devname,
106 (int) sizeof(p.volname), p.volname);
110 block_ioctl(struct tcb *tcp, long code, long arg)
113 /* take arg as a value, not as a pointer */
117 tprintf(", %ld", arg);
120 /* take a signed int */
125 if (umove(tcp, arg, &val) < 0)
126 tprintf(", %#lx", arg);
128 tprintf(", %d", val);
132 /* returns an unsigned short */
136 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
137 tprintf(", %#lx", arg);
139 tprintf(", %u", (unsigned)val);
143 /* return a signed int */
150 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
151 tprintf(", %#lx", arg);
153 tprintf(", %d", val);
157 /* return an unsigned int */
161 case BLKDISCARDZEROES:
164 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
165 tprintf(", %#lx", arg);
167 tprintf(", %u", val);
171 /* return a signed long */
176 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
177 tprintf(", %#lx", arg);
179 tprintf(", %ld", val);
183 /* returns an unsigned long */
187 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
188 tprintf(", %#lx", arg);
190 tprintf(", %lu", val);
194 #ifdef HAVE_BLKGETSIZE64
195 /* return an uint64_t */
199 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
200 tprintf(", %#lx", arg);
202 tprintf(", %" PRIu64, val);
207 /* More complex types */
212 if (umove(tcp, arg, range) < 0)
213 tprintf(", %#lx", arg);
215 tprintf(", {%" PRIx64 ", %" PRIx64 "}",
222 struct hd_geometry geo;
223 if (syserror(tcp) || umove(tcp, arg, &geo) < 0)
224 tprintf(", %#lx", arg);
226 tprintf(", {heads=%u, sectors=%u, "
227 "cylinders=%u, start=%lu}",
229 (unsigned)geo.sectors,
230 (unsigned)geo.cylinders,
237 struct blkpg_ioctl_arg blkpg;
238 if (umove(tcp, arg, &blkpg) < 0)
239 tprintf(", %#lx", arg);
242 print_blkpg_req(tcp, &blkpg);
249 struct blk_user_trace_setup buts;
250 if (umove(tcp, arg, &buts) < 0)
251 tprintf(", %#lx", arg);
253 tprintf(", {act_mask=%u, buf_size=%u, "
254 "buf_nr=%u, start_lba=%" PRIu64 ", "
255 "end_lba=%" PRIu64 ", pid=%u}",
256 (unsigned)buts.act_mask, buts.buf_size,
257 buts.buf_nr, buts.start_lba,
258 buts.end_lba, buts.pid);
261 struct blk_user_trace_setup buts;
262 if (syserror(tcp) || umove(tcp, arg, &buts) < 0)
263 tprintf(", %#lx", arg);
265 tprintf(", {name=\"%.*s\"}",
266 (int) sizeof(buts.name), buts.name);
270 /* No arguments or unhandled */
273 case BLKTRACETEARDOWN:
274 case BLKFLSBUF: /* Requires driver knowlege */
275 case BLKRRPART: /* No args */
278 tprintf(", %#lx", arg);