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.
32 #include <linux/blkpg.h>
34 #include <linux/hdreg.h>
36 /* ioctls <= 114 are present in Linux 2.4. The following ones have been
37 * added since then and headers containing them may not be available on
40 #define BLKTRACE_BDEV_SIZE 32
41 struct blk_user_trace_setup {
42 char name[BLKTRACE_BDEV_SIZE]; /* output */
43 uint16_t act_mask; /* input */
44 uint32_t buf_size; /* input */
45 uint32_t buf_nr; /* input */
52 #define BLKTRACESETUP _IOWR(0x12,115,struct blk_user_trace_setup)
55 #define BLKTRACESTART _IO(0x12,116)
58 #define BLKTRACESTOP _IO(0x12,117)
60 #ifndef BLKTRACETEARDOWN
61 #define BLKTRACETEARDOWN _IO(0x12,118)
64 #define BLKDISCARD _IO(0x12,119)
67 #define BLKIOMIN _IO(0x12,120)
70 #define BLKIOOPT _IO(0x12,121)
73 #define BLKALIGNOFF _IO(0x12,122)
76 #define BLKPBSZGET _IO(0x12,123)
78 #ifndef BLKDISCARDZEROES
79 #define BLKDISCARDZEROES _IO(0x12,124)
82 #define BLKSECDISCARD _IO(0x12,125)
85 static const struct xlat blkpg_ops[] = {
86 { BLKPG_ADD_PARTITION, "BLKPG_ADD_PARTITION", },
87 { BLKPG_DEL_PARTITION, "BLKPG_DEL_PARTITION", },
92 print_blkpg_req(struct tcb *tcp, struct blkpg_ioctl_arg *blkpg)
94 struct blkpg_partition p;
97 printxval(blkpg_ops, blkpg->op, "BLKPG_???");
99 tprintf(", flags=%d, datalen=%d, ",
100 blkpg->flags, blkpg->datalen);
102 if (umove(tcp, (long) blkpg->data, &p) < 0)
103 tprintf("%#lx}", (long) blkpg->data);
105 tprintf("{start=%lld, length=%lld, pno=%d, "
106 "devname=\"%.*s\", volname=\"%.*s\"}}",
107 p.start, p.length, p.pno,
108 (int) sizeof(p.devname), p.devname,
109 (int) sizeof(p.volname), p.volname);
113 block_ioctl(struct tcb *tcp, long code, long arg)
116 /* take arg as a value, not as a pointer */
120 tprintf(", %ld", arg);
123 /* take a signed int */
128 if (umove(tcp, arg, &val) < 0)
129 tprintf(", %#lx", arg);
131 tprintf(", %d", val);
135 /* returns an unsigned short */
139 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
140 tprintf(", %#lx", arg);
142 tprintf(", %hu", val);
146 /* return a signed int */
153 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
154 tprintf(", %#lx", arg);
156 tprintf(", %d", val);
160 /* return an unsigned int */
164 case BLKDISCARDZEROES:
167 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
168 tprintf(", %#lx", arg);
170 tprintf(", %u", val);
174 /* return a signed long */
179 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
180 tprintf(", %#lx", arg);
182 tprintf(", %ld", val);
186 /* returns an unsigned long */
190 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
191 tprintf(", %#lx", arg);
193 tprintf(", %lu", val);
197 /* return an uint64_t */
201 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
202 tprintf(", %#lx", arg);
204 tprintf(", %" PRIu64, val);
208 /* More complex types */
213 if (umove(tcp, arg, range) < 0)
214 tprintf(", %#lx", arg);
216 tprintf(", {%" PRIx64 ", %" PRIx64 "}",
223 struct hd_geometry geo;
224 if (syserror(tcp) || umove(tcp, arg, &geo) < 0)
225 tprintf(", %#lx", arg);
227 tprintf(", {heads=%hhu, sectors=%hhu, "
228 "cylinders=%hu, start=%lu}",
229 geo.heads, geo.sectors,
230 geo.cylinders, geo.start);
236 struct blkpg_ioctl_arg blkpg;
237 if (umove(tcp, arg, &blkpg) < 0)
238 tprintf(", %#lx", arg);
241 print_blkpg_req(tcp, &blkpg);
248 struct blk_user_trace_setup buts;
249 if (umove(tcp, arg, &buts) < 0)
250 tprintf(", %#lx", arg);
252 tprintf(", {act_mask=%hu, buf_size=%u, "
253 "buf_nr=%u, start_lba=%" PRIu64 ", "
254 "end_lba=%" PRIu64 ", pid=%u}",
255 buts.act_mask, buts.buf_size,
256 buts.buf_nr, buts.start_lba,
257 buts.end_lba, buts.pid);
260 struct blk_user_trace_setup buts;
261 if (syserror(tcp) || umove(tcp, arg, &buts) < 0)
262 tprintf(", %#lx", arg);
264 tprintf(", {name=\"%.*s\"}",
265 (int) sizeof(buts.name), buts.name);
269 /* No arguments or unhandled */
272 case BLKTRACETEARDOWN:
273 case BLKFLSBUF: /* Requires driver knowlege */
274 case BLKRRPART: /* No args */
277 tprintf(", %#lx", arg);