1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2007-2008 Robert N. M. Watson
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/sysctl.h>
32 #include <sys/user.h>
33
34 #include <err.h>
35 #include <libprocstat.h>
36 #include <stdlib.h>
37 #include <stdio.h>
38 #include <unistd.h>
39
40 #include "procstat.h"
41
42 static const char *get_umask(struct procstat *procstat,
43 struct kinfo_proc *kipp);
44
45 void
procstat_cred(struct procstat * procstat,struct kinfo_proc * kipp)46 procstat_cred(struct procstat *procstat, struct kinfo_proc *kipp)
47 {
48 unsigned int i, ngroups;
49 gid_t *groups;
50
51 if ((procstat_opts & PS_OPT_NOHEADER) == 0)
52 xo_emit("{T:/%5s %-16s %5s %5s %5s %5s %5s %5s %5s %5s %-15s}\n",
53 "PID", "COMM", "EUID", "RUID", "SVUID", "EGID", "RGID",
54 "SVGID", "UMASK", "FLAGS", "GROUPS");
55
56 xo_emit("{k:process_id/%5d/%d} ", kipp->ki_pid);
57 xo_emit("{:command/%-16s/%s} ", kipp->ki_comm);
58 xo_emit("{:uid/%5d} ", kipp->ki_uid);
59 xo_emit("{:ruid/%5d} ", kipp->ki_ruid);
60 xo_emit("{:svuid/%5d} ", kipp->ki_svuid);
61 xo_emit("{:group/%5d} ", kipp->ki_groups[0]);
62 xo_emit("{:rgid/%5d} ", kipp->ki_rgid);
63 xo_emit("{:svgid/%5d} ", kipp->ki_svgid);
64 xo_emit("{:umask/%5s} ", get_umask(procstat, kipp));
65 xo_emit("{:cr_flags/%s}", kipp->ki_cr_flags & KI_CRF_CAPABILITY_MODE ?
66 "C" : "-");
67 xo_emit("{P: }");
68
69 groups = NULL;
70 /*
71 * We may have too many groups to fit in kinfo_proc's statically
72 * sized storage. If that occurs, attempt to retrieve them using
73 * libprocstat.
74 */
75 if (kipp->ki_cr_flags & KI_CRF_GRP_OVERFLOW)
76 groups = procstat_getgroups(procstat, kipp, &ngroups);
77 if (groups == NULL) {
78 ngroups = kipp->ki_ngroups;
79 groups = kipp->ki_groups;
80 }
81 xo_open_list("groups");
82 for (i = 0; i < ngroups; i++)
83 xo_emit("{D:/%s}{l:groups/%d}", (i > 0) ? "," : "", groups[i]);
84 if (groups != kipp->ki_groups)
85 procstat_freegroups(procstat, groups);
86
87 xo_close_list("groups");
88 xo_emit("\n");
89 }
90
91 static const char *
get_umask(struct procstat * procstat,struct kinfo_proc * kipp)92 get_umask(struct procstat *procstat, struct kinfo_proc *kipp)
93 {
94 u_short fd_cmask;
95 static char umask[4];
96
97 if (procstat_getumask(procstat, kipp, &fd_cmask) == 0) {
98 snprintf(umask, 4, "%03o", fd_cmask);
99 return (umask);
100 } else {
101 return ("-");
102 }
103 }
104