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