1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2011 Mikolaj Golub
5 * Copyright (c) 2015 Allan Jude <[email protected]>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 #include <sys/param.h>
32 #include <sys/elf.h>
33 #include <sys/sysctl.h>
34 #include <sys/user.h>
35
36 #include <vm/vm.h>
37
38 #include <err.h>
39 #include <errno.h>
40 #include <libprocstat.h>
41 #include <limits.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <string.h>
45
46 #include "procstat.h"
47
48 void
procstat_auxv(struct procstat * procstat,struct kinfo_proc * kipp)49 procstat_auxv(struct procstat *procstat, struct kinfo_proc *kipp)
50 {
51 Elf_Auxinfo *auxv;
52 u_int count, i;
53 static char prefix[256];
54
55 if ((procstat_opts & PS_OPT_NOHEADER) == 0)
56 xo_emit("{T:/%5s %-16s %-16s %-16s}\n", "PID", "COMM", "AUXV",
57 "VALUE");
58
59 auxv = procstat_getauxv(procstat, kipp, &count);
60 if (auxv == NULL)
61 return;
62 snprintf(prefix, sizeof(prefix), "%5d %-16s", kipp->ki_pid,
63 kipp->ki_comm);
64
65 xo_emit("{e:process_id/%5d/%d}{e:command/%-16s/%s}", kipp->ki_pid,
66 kipp->ki_comm);
67
68 for (i = 0; i < count; i++) {
69 switch(auxv[i].a_type) {
70 case AT_NULL:
71 return;
72 case AT_IGNORE:
73 break;
74 case AT_EXECFD:
75 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EXECFD/%ld}\n",
76 prefix, "AT_EXECFD", (long)auxv[i].a_un.a_val);
77 break;
78 case AT_PHDR:
79 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHDR/%p}\n",
80 prefix, "AT_PHDR", auxv[i].a_un.a_ptr);
81 break;
82 case AT_PHENT:
83 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHENT/%ld}\n",
84 prefix, "AT_PHENT", (long)auxv[i].a_un.a_val);
85 break;
86 case AT_PHNUM:
87 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHNUM/%ld}\n",
88 prefix, "AT_PHNUM", (long)auxv[i].a_un.a_val);
89 break;
90 case AT_PAGESZ:
91 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PAGESZ/%ld}\n",
92 prefix, "AT_PAGESZ", (long)auxv[i].a_un.a_val);
93 break;
94 case AT_BASE:
95 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_BASE/%p}\n",
96 prefix, "AT_BASE", auxv[i].a_un.a_ptr);
97 break;
98 case AT_FLAGS:
99 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_FLAGS/%#lx}\n",
100 prefix, "AT_FLAGS", (u_long)auxv[i].a_un.a_val);
101 break;
102 case AT_ENTRY:
103 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ENTRY/%p}\n",
104 prefix, "AT_ENTRY", auxv[i].a_un.a_ptr);
105 break;
106 #ifdef AT_NOTELF
107 case AT_NOTELF:
108 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_NOTELF/%ld}\n",
109 prefix, "AT_NOTELF", (long)auxv[i].a_un.a_val);
110 break;
111 #endif
112 #ifdef AT_UID
113 case AT_UID:
114 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_UID/%ld}\n",
115 prefix, "AT_UID", (long)auxv[i].a_un.a_val);
116 break;
117 #endif
118 #ifdef AT_EUID
119 case AT_EUID:
120 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EUID/%ld}\n",
121 prefix, "AT_EUID", (long)auxv[i].a_un.a_val);
122 break;
123 #endif
124 #ifdef AT_GID
125 case AT_GID:
126 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_GID/%ld}\n",
127 prefix, "AT_GID", (long)auxv[i].a_un.a_val);
128 break;
129 #endif
130 #ifdef AT_EGID
131 case AT_EGID:
132 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EGID/%ld}\n",
133 prefix, "AT_EGID", (long)auxv[i].a_un.a_val);
134 break;
135 #endif
136 case AT_EXECPATH:
137 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EXECPATH/%p}\n",
138 prefix, "AT_EXECPATH", auxv[i].a_un.a_ptr);
139 break;
140 case AT_CANARY:
141 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_CANARY/%p}\n",
142 prefix, "AT_CANARY", auxv[i].a_un.a_ptr);
143 break;
144 case AT_CANARYLEN:
145 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_CANARYLEN/%ld}\n",
146 prefix, "AT_CANARYLEN", (long)auxv[i].a_un.a_val);
147 break;
148 case AT_OSRELDATE:
149 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_OSRELDATE/%ld}\n",
150 prefix, "AT_OSRELDATE", (long)auxv[i].a_un.a_val);
151 break;
152 case AT_NCPUS:
153 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_NCPUS/%ld}\n",
154 prefix, "AT_NCPUS", (long)auxv[i].a_un.a_val);
155 break;
156 case AT_PAGESIZES:
157 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PAGESIZES/%p}\n",
158 prefix, "AT_PAGESIZES", auxv[i].a_un.a_ptr);
159 break;
160 case AT_PAGESIZESLEN:
161 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
162 "{:AT_PAGESIZESLEN/%ld}\n", prefix,
163 "AT_PAGESIZESLEN", (long)auxv[i].a_un.a_val);
164 break;
165 case AT_STACKPROT:
166 if ((auxv[i].a_un.a_val & VM_PROT_EXECUTE) != 0)
167 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
168 "{:AT_STACKPROT/%s}\n", prefix,
169 "AT_STACKPROT", "EXECUTABLE");
170 else
171 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
172 "{:AT_STACKPROT/%s}\n", prefix,
173 "AT_STACKPROT", "NONEXECUTABLE");
174 break;
175 #ifdef AT_TIMEKEEP
176 case AT_TIMEKEEP:
177 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_TIMEKEEP/%p}\n",
178 prefix, "AT_TIMEKEEP", auxv[i].a_un.a_ptr);
179 break;
180 #endif
181 #ifdef AT_EHDRFLAGS
182 case AT_EHDRFLAGS:
183 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EHDRFLAGS/%#lx}\n",
184 prefix, "AT_EHDRFLAGS", (u_long)auxv[i].a_un.a_val);
185 break;
186 #endif
187 #ifdef AT_HWCAP
188 case AT_HWCAP:
189 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_HWCAP/%#lx}\n",
190 prefix, "AT_HWCAP", (u_long)auxv[i].a_un.a_val);
191 break;
192 #endif
193 #ifdef AT_HWCAP2
194 case AT_HWCAP2:
195 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_HWCAP2/%#lx}\n",
196 prefix, "AT_HWCAP2", (u_long)auxv[i].a_un.a_val);
197 break;
198 #endif
199 #ifdef AT_BSDFLAGS
200 case AT_BSDFLAGS:
201 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_BSDFLAGS/%#lx}\n",
202 prefix, "AT_BSDFLAGS", (u_long)auxv[i].a_un.a_val);
203 break;
204 #endif
205 #ifdef AT_ARGC
206 case AT_ARGC:
207 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ARGC/%ld}\n",
208 prefix, "AT_ARGC", (long)auxv[i].a_un.a_val);
209 break;
210 #endif
211 #ifdef AT_ARGV
212 case AT_ARGV:
213 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ARGV/%p}\n",
214 prefix, "AT_ARGV", auxv[i].a_un.a_ptr);
215 break;
216 #endif
217 #ifdef AT_ENVC
218 case AT_ENVC:
219 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ENVC/%ld}\n",
220 prefix, "AT_ENVC", (long)auxv[i].a_un.a_val);
221 break;
222 #endif
223 #ifdef AT_ENVV
224 case AT_ENVV:
225 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ENVV/%p}\n",
226 prefix, "AT_ENVV", auxv[i].a_un.a_ptr);
227 break;
228 #endif
229 #ifdef AT_PS_STRINGS
230 case AT_PS_STRINGS:
231 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PS_STRINGS/%p}\n",
232 prefix, "AT_PS_STRINGS", auxv[i].a_un.a_ptr);
233 break;
234 #endif
235 #ifdef AT_FXRNG
236 case AT_FXRNG:
237 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_FXRNG/%p}\n",
238 prefix, "AT_FXRNG", auxv[i].a_un.a_ptr);
239 break;
240 #endif
241 #ifdef AT_KPRELOAD
242 case AT_KPRELOAD:
243 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_KPRELOAD/%p}\n",
244 prefix, "AT_KPRELOAD", auxv[i].a_un.a_ptr);
245 break;
246 #endif
247 #ifdef AT_USRSTACKBASE
248 case AT_USRSTACKBASE:
249 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
250 "{:AT_USRSTACKBASE/%#lx}\n",
251 prefix, "AT_USRSTACKBASE", auxv[i].a_un.a_val);
252 break;
253 #endif
254 #ifdef AT_USRSTACKLIM
255 case AT_USRSTACKLIM:
256 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
257 "{:AT_USRSTACKLIM/%#lx}\n",
258 prefix, "AT_USRSTACKLIM", auxv[i].a_un.a_val);
259 break;
260 #endif
261 default:
262 xo_emit("{dw:/%s}{Lw:/%16ld/%ld}{:UNKNOWN/%#lx}\n",
263 prefix, auxv[i].a_type, auxv[i].a_un.a_val);
264 break;
265 }
266 }
267 xo_emit("\n");
268 procstat_freeauxv(procstat, auxv);
269 }
270
271