1 /*-
2 * Copyright (c) 2011 Mikolaj Golub
3 * Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD$
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 (!hflag)
55 xo_emit("{T:/%5s %-16s %-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 %-16s", kipp->ki_pid,
62 kipp->ki_comm);
63
64 xo_emit("{e:process_id/%5d/%d}{e:command/%-16s/%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 default:
181 xo_emit("{dw:/%s}{Lw:/%16ld/%ld}{:UNKNOWN/%#lx}\n",
182 prefix, auxv[i].a_type, auxv[i].a_un.a_val);
183 break;
184 }
185 }
186 xo_emit("\n");
187 procstat_freeauxv(procstat, auxv);
188 }
189
190