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.
31 #include <linux/blkpg.h>
33 #include <linux/hdreg.h>
35 /* ioctls <= 114 are present in Linux 2.4. The following ones have been
36 * added since then and headers containing them may not be available on
39 #define BLKTRACE_BDEV_SIZE 32
40 struct blk_user_trace_setup {
41 char name[BLKTRACE_BDEV_SIZE]; /* output */
42 uint16_t act_mask; /* input */
43 uint32_t buf_size; /* input */
44 uint32_t buf_nr; /* input */
51 #define BLKTRACESETUP _IOWR(0x12,115,struct blk_user_trace_setup)
54 #define BLKTRACESTART _IO(0x12,116)
57 #define BLKTRACESTOP _IO(0x12,117)
59 #ifndef BLKTRACETEARDOWN
60 #define BLKTRACETEARDOWN _IO(0x12,118)
63 #define BLKDISCARD _IO(0x12,119)
66 #define BLKIOMIN _IO(0x12,120)
69 #define BLKIOOPT _IO(0x12,121)
72 #define BLKALIGNOFF _IO(0x12,122)
75 #define BLKPBSZGET _IO(0x12,123)
77 #ifndef BLKDISCARDZEROES
78 #define BLKDISCARDZEROES _IO(0x12,124)
81 #define BLKSECDISCARD _IO(0x12,125)
84 static const struct xlat blkpg_ops[] = {
85 { BLKPG_ADD_PARTITION, "BLKPG_ADD_PARTITION", },
86 { BLKPG_DEL_PARTITION, "BLKPG_DEL_PARTITION", },
91 print_blkpg_req(struct tcb *tcp, struct blkpg_ioctl_arg *blkpg)
93 struct blkpg_partition p;
96 printxval(blkpg_ops, blkpg->op, "BLKPG_???");
98 tprintf(", flags=%d, datalen=%d, ",
99 blkpg->flags, blkpg->datalen);
101 if (umove(tcp, (long) blkpg->data, &p) < 0)
102 tprintf("%#lx}", (long) blkpg->data);
104 tprintf("{start=%lld, length=%lld, pno=%d, "
105 "devname=\"%.*s\", volname=\"%.*s\"}}",
106 p.start, p.length, p.pno,
107 (int) sizeof(p.devname), p.devname,
108 (int) sizeof(p.volname), p.volname);
112 block_ioctl(struct tcb *tcp, long code, long arg)
115 /* take arg as a value, not as a pointer */
119 tprintf(", %ld", arg);
122 /* take a signed int */
127 if (umove(tcp, arg, &val) < 0)
128 tprintf(", %#lx", arg);
130 tprintf(", %d", val);
134 /* returns an unsigned short */
138 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
139 tprintf(", %#lx", arg);
141 tprintf(", %hu", val);
145 /* return a signed int */
152 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
153 tprintf(", %#lx", arg);
155 tprintf(", %d", val);
159 /* return an unsigned int */
163 case BLKDISCARDZEROES:
166 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
167 tprintf(", %#lx", arg);
169 tprintf(", %u", val);
173 /* return a signed long */
178 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
179 tprintf(", %#lx", arg);
181 tprintf(", %ld", val);
185 /* returns an unsigned long */
189 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
190 tprintf(", %#lx", arg);
192 tprintf(", %lu", val);
196 #ifdef HAVE_BLKGETSIZE64
197 /* return an uint64_t */
201 if (syserror(tcp) || umove(tcp, arg, &val) < 0)
202 tprintf(", %#lx", arg);
204 tprintf(", %" PRIu64, val);
209 /* More complex types */
214 if (umove(tcp, arg, range) < 0)
215 tprintf(", %#lx", arg);
217 tprintf(", {%" PRIx64 ", %" PRIx64 "}",
224 struct hd_geometry geo;
225 if (syserror(tcp) || umove(tcp, arg, &geo) < 0)
226 tprintf(", %#lx", arg);
228 tprintf(", {heads=%hhu, sectors=%hhu, "
229 "cylinders=%hu, start=%lu}",
230 geo.heads, geo.sectors,
231 geo.cylinders, geo.start);
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=%hu, buf_size=%u, "
254 "buf_nr=%u, start_lba=%" PRIu64 ", "
255 "end_lba=%" PRIu64 ", pid=%u}",
256 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);