1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2011 Mikolaj Golub
5 * Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
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/param.h>
31 #include <sys/elf.h>
32 #include <sys/sysctl.h>
33 #include <sys/user.h>
34
35 #include <vm/vm.h>
36
37 #include <err.h>
38 #include <errno.h>
39 #include <libprocstat.h>
40 #include <limits.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44
45 #include "procstat.h"
46
47 void
procstat_auxv(struct procstat * procstat,struct kinfo_proc * kipp)48 procstat_auxv(struct procstat *procstat, struct kinfo_proc *kipp)
49 {
50 Elf_Auxinfo *auxv;
51 u_int count, i;
52 static char prefix[256];
53
54 if ((procstat_opts & PS_OPT_NOHEADER) == 0)
55 xo_emit("{T:/%5s %-19s %-16s %-16s}\n", "PID", "COMM", "AUXV",
56 "VALUE");
57
58 auxv = procstat_getauxv(procstat, kipp, &count);
59 if (auxv == NULL)
60 return;
61 snprintf(prefix, sizeof(prefix), "%5d %-19s", kipp->ki_pid,
62 kipp->ki_comm);
63
64 xo_emit("{e:process_id/%5d/%d}{e:command/%-19s/%s}", kipp->ki_pid,
65 kipp->ki_comm);
66
67 for (i = 0; i < count; i++) {
68 switch(auxv[i].a_type) {
69 case AT_NULL:
70 return;
71 case AT_IGNORE:
72 break;
73 case AT_EXECFD:
74 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EXECFD/%ld}\n",
75 prefix, "AT_EXECFD", (long)auxv[i].a_un.a_val);
76 break;
77 case AT_PHDR:
78 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHDR/%p}\n",
79 prefix, "AT_PHDR", auxv[i].a_un.a_ptr);
80 break;
81 case AT_PHENT:
82 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHENT/%ld}\n",
83 prefix, "AT_PHENT", (long)auxv[i].a_un.a_val);
84 break;
85 case AT_PHNUM:
86 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHNUM/%ld}\n",
87 prefix, "AT_PHNUM", (long)auxv[i].a_un.a_val);
88 break;
89 case AT_PAGESZ:
90 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PAGESZ/%ld}\n",
91 prefix, "AT_PAGESZ", (long)auxv[i].a_un.a_val);
92 break;
93 case AT_BASE:
94 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_BASE/%p}\n",
95 prefix, "AT_BASE", auxv[i].a_un.a_ptr);
96 break;
97 case AT_FLAGS:
98 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_FLAGS/%#lx}\n",
99 prefix, "AT_FLAGS", (u_long)auxv[i].a_un.a_val);
100 break;
101 case AT_ENTRY:
102 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ENTRY/%p}\n",
103 prefix, "AT_ENTRY", auxv[i].a_un.a_ptr);
104 break;
105 #ifdef AT_NOTELF
106 case AT_NOTELF:
107 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_NOTELF/%ld}\n",
108 prefix, "AT_NOTELF", (long)auxv[i].a_un.a_val);
109 break;
110 #endif
111 #ifdef AT_UID
112 case AT_UID:
113 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_UID/%ld}\n",
114 prefix, "AT_UID", (long)auxv[i].a_un.a_val);
115 break;
116 #endif
117 #ifdef AT_EUID
118 case AT_EUID:
119 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EUID/%ld}\n",
120 prefix, "AT_EUID", (long)auxv[i].a_un.a_val);
121 break;
122 #endif
123 #ifdef AT_GID
124 case AT_GID:
125 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_GID/%ld}\n",
126 prefix, "AT_GID", (long)auxv[i].a_un.a_val);
127 break;
128 #endif
129 #ifdef AT_EGID
130 case AT_EGID:
131 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EGID/%ld}\n",
132 prefix, "AT_EGID", (long)auxv[i].a_un.a_val);
133 break;
134 #endif
135 case AT_EXECPATH:
136 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EXECPATH/%p}\n",
137 prefix, "AT_EXECPATH", auxv[i].a_un.a_ptr);
138 break;
139 case AT_CANARY:
140 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_CANARY/%p}\n",
141 prefix, "AT_CANARY", auxv[i].a_un.a_ptr);
142 break;
143 case AT_CANARYLEN:
144 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_CANARYLEN/%ld}\n",
145 prefix, "AT_CANARYLEN", (long)auxv[i].a_un.a_val);
146 break;
147 case AT_OSRELDATE:
148 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_OSRELDATE/%ld}\n",
149 prefix, "AT_OSRELDATE", (long)auxv[i].a_un.a_val);
150 break;
151 case AT_NCPUS:
152 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_NCPUS/%ld}\n",
153 prefix, "AT_NCPUS", (long)auxv[i].a_un.a_val);
154 break;
155 case AT_PAGESIZES:
156 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PAGESIZES/%p}\n",
157 prefix, "AT_PAGESIZES", auxv[i].a_un.a_ptr);
158 break;
159 case AT_PAGESIZESLEN:
160 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
161 "{:AT_PAGESIZESLEN/%ld}\n", prefix,
162 "AT_PAGESIZESLEN", (long)auxv[i].a_un.a_val);
163 break;
164 case AT_STACKPROT:
165 if ((auxv[i].a_un.a_val & VM_PROT_EXECUTE) != 0)
166 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
167 "{:AT_STACKPROT/%s}\n", prefix,
168 "AT_STACKPROT", "EXECUTABLE");
169 else
170 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
171 "{:AT_STACKPROT/%s}\n", prefix,
172 "AT_STACKPROT", "NONEXECUTABLE");
173 break;
174 #ifdef AT_TIMEKEEP
175 case AT_TIMEKEEP:
176 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_TIMEKEEP/%p}\n",
177 prefix, "AT_TIMEKEEP", auxv[i].a_un.a_ptr);
178 break;
179 #endif
180 #ifdef AT_EHDRFLAGS
181 case AT_EHDRFLAGS:
182 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EHDRFLAGS/%#lx}\n",
183 prefix, "AT_EHDRFLAGS", (u_long)auxv[i].a_un.a_val);
184 break;
185 #endif
186 #ifdef AT_HWCAP
187 case AT_HWCAP:
188 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_HWCAP/%#lx}\n",
189 prefix, "AT_HWCAP", (u_long)auxv[i].a_un.a_val);
190 break;
191 #endif
192 #ifdef AT_HWCAP2
193 case AT_HWCAP2:
194 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_HWCAP2/%#lx}\n",
195 prefix, "AT_HWCAP2", (u_long)auxv[i].a_un.a_val);
196 break;
197 #endif
198 #ifdef AT_BSDFLAGS
199 case AT_BSDFLAGS:
200 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_BSDFLAGS/%#lx}\n",
201 prefix, "AT_BSDFLAGS", (u_long)auxv[i].a_un.a_val);
202 break;
203 #endif
204 #ifdef AT_ARGC
205 case AT_ARGC:
206 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ARGC/%ld}\n",
207 prefix, "AT_ARGC", (long)auxv[i].a_un.a_val);
208 break;
209 #endif
210 #ifdef AT_ARGV
211 case AT_ARGV:
212 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ARGV/%p}\n",
213 prefix, "AT_ARGV", auxv[i].a_un.a_ptr);
214 break;
215 #endif
216 #ifdef AT_ENVC
217 case AT_ENVC:
218 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ENVC/%ld}\n",
219 prefix, "AT_ENVC", (long)auxv[i].a_un.a_val);
220 break;
221 #endif
222 #ifdef AT_ENVV
223 case AT_ENVV:
224 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ENVV/%p}\n",
225 prefix, "AT_ENVV", auxv[i].a_un.a_ptr);
226 break;
227 #endif
228 #ifdef AT_PS_STRINGS
229 case AT_PS_STRINGS:
230 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PS_STRINGS/%p}\n",
231 prefix, "AT_PS_STRINGS", auxv[i].a_un.a_ptr);
232 break;
233 #endif
234 #ifdef AT_FXRNG
235 case AT_FXRNG:
236 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_FXRNG/%p}\n",
237 prefix, "AT_FXRNG", auxv[i].a_un.a_ptr);
238 break;
239 #endif
240 #ifdef AT_KPRELOAD
241 case AT_KPRELOAD:
242 xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_KPRELOAD/%p}\n",
243 prefix, "AT_KPRELOAD", auxv[i].a_un.a_ptr);
244 break;
245 #endif
246 #ifdef AT_USRSTACKBASE
247 case AT_USRSTACKBASE:
248 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
249 "{:AT_USRSTACKBASE/%#lx}\n",
250 prefix, "AT_USRSTACKBASE", auxv[i].a_un.a_val);
251 break;
252 #endif
253 #ifdef AT_USRSTACKLIM
254 case AT_USRSTACKLIM:
255 xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
256 "{:AT_USRSTACKLIM/%#lx}\n",
257 prefix, "AT_USRSTACKLIM", auxv[i].a_un.a_val);
258 break;
259 #endif
260 default:
261 xo_emit("{dw:/%s}{Lw:/%16ld/%ld}{:UNKNOWN/%#lx}\n",
262 prefix, auxv[i].a_type, auxv[i].a_un.a_val);
263 break;
264 }
265 }
266 xo_emit("\n");
267 procstat_freeauxv(procstat, auxv);
268 }
269
270