1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2010 Konstantin Belousov 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 <ctype.h> 35#include <err.h> 36#include <errno.h> 37#include <signal.h> 38#include <stdbool.h> 39#include <stdint.h> 40#include <stdio.h> 41#include <stdlib.h> 42#include <string.h> 43#include <libprocstat.h> 44 45#include "procstat.h" 46 47static void 48procstat_print_signame(int sig) 49{ 50 char name[12]; 51 int i; 52 53 if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) { 54 strlcpy(name, sys_signame[sig], sizeof(name)); 55 for (i = 0; name[i] != 0; i++) 56 name[i] = toupper(name[i]); 57 xo_emit("{d:signal/%-7s/%s} ", name); 58 xo_open_container(name); 59 } else { 60 xo_emit("{d:signal/%-7d/%d} ", sig); 61 snprintf(name, 12, "%d", sig); 62 xo_open_container(name); 63 } 64} 65 66static void 67procstat_close_signame(int sig) 68{ 69 char name[12]; 70 int i; 71 72 if ((procstat_opts & PS_OPT_SIGNUM) == 0 && sig < sys_nsig) { 73 strlcpy(name, sys_signame[sig], sizeof(name)); 74 for (i = 0; name[i] != 0; i++) 75 name[i] = toupper(name[i]); 76 xo_close_container(name); 77 } else { 78 snprintf(name, 12, "%d", sig); 79 xo_close_container(name); 80 } 81} 82 83static void 84procstat_print_sig(const sigset_t *set, int sig, char flag) 85{ 86 xo_emit("{d:sigmember/%c}", sigismember(set, sig) ? flag : '-'); 87 switch (flag) { 88 case 'B': 89 xo_emit("{en:mask/%s}", sigismember(set, sig) ? 90 "true" : "false"); 91 break; 92 case 'C': 93 xo_emit("{en:catch/%s}", sigismember(set, sig) ? 94 "true" : "false"); 95 break; 96 case 'P': 97 xo_emit("{en:list/%s}", sigismember(set, sig) ? 98 "true" : "false"); 99 break; 100 case 'I': 101 xo_emit("{en:ignore/%s}", sigismember(set, sig) ? 102 "true" : "false"); 103 break; 104 default: 105 xo_emit("{en:unknown/%s}", sigismember(set, sig) ? 106 "true" : "false"); 107 break; 108 } 109} 110 111void 112procstat_sigs(struct procstat *prstat __unused, struct kinfo_proc *kipp) 113{ 114 int j; 115 116 if ((procstat_opts & PS_OPT_NOHEADER) == 0) 117 xo_emit("{T:/%5s %-16s %-7s %4s}\n", "PID", "COMM", "SIG", 118 "FLAGS"); 119 120 xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid); 121 xo_emit("{e:command/%-16s/%s}", kipp->ki_comm); 122 xo_open_container("signals"); 123 for (j = 1; j <= _SIG_MAXSIG; j++) { 124 xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); 125 xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm); 126 procstat_print_signame(j); 127 xo_emit(" "); 128 procstat_print_sig(&kipp->ki_siglist, j, 'P'); 129 procstat_print_sig(&kipp->ki_sigignore, j, 'I'); 130 procstat_print_sig(&kipp->ki_sigcatch, j, 'C'); 131 procstat_close_signame(j); 132 xo_emit("\n"); 133 } 134 xo_close_container("signals"); 135} 136 137void 138procstat_threads_sigs(struct procstat *procstat, struct kinfo_proc *kipp) 139{ 140 struct kinfo_proc *kip; 141 int j; 142 unsigned int count, i; 143 char *threadid; 144 145 if ((procstat_opts & PS_OPT_NOHEADER) == 0) 146 xo_emit("{T:/%5s %6s %-16s %-7s %4s}\n", "PID", "TID", "COMM", 147 "SIG", "FLAGS"); 148 149 kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD, 150 kipp->ki_pid, &count); 151 if (kip == NULL) 152 return; 153 xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid); 154 xo_emit("{e:command/%-16s/%s}", kipp->ki_comm); 155 xo_open_container("threads"); 156 kinfo_proc_sort(kip, count); 157 for (i = 0; i < count; i++) { 158 kipp = &kip[i]; 159 asprintf(&threadid, "%d", kipp->ki_tid); 160 if (threadid == NULL) 161 xo_errc(1, ENOMEM, "Failed to allocate memory in " 162 "procstat_threads_sigs()"); 163 xo_open_container(threadid); 164 xo_emit("{e:thread_id/%6d/%d}", kipp->ki_tid); 165 xo_open_container("signals"); 166 167 for (j = 1; j <= _SIG_MAXSIG; j++) { 168 xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); 169 xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid); 170 xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm); 171 procstat_print_signame(j); 172 xo_emit(" "); 173 procstat_print_sig(&kipp->ki_siglist, j, 'P'); 174 procstat_print_sig(&kipp->ki_sigmask, j, 'B'); 175 procstat_close_signame(j); 176 xo_emit("\n"); 177 } 178 xo_close_container("signals"); 179 xo_close_container(threadid); 180 free(threadid); 181 } 182 xo_close_container("threads"); 183 procstat_freeprocs(procstat, kip); 184} 185 186void 187procstat_sigfastblock(struct procstat *procstat, struct kinfo_proc *kipp) 188{ 189 struct kinfo_proc *kip; 190 char *threadid; 191 uintptr_t sigfastblk_addr; 192 int error, name[4]; 193 unsigned int count, i; 194 size_t len; 195 bool has_sigfastblk_addr; 196 197 if ((procstat_opts & PS_OPT_NOHEADER) == 0) 198 xo_emit("{T:/%5s %6s %-16s %-16s}\n", "PID", "TID", 199 "COMM", "SIGFBLK"); 200 201 kip = procstat_getprocs(procstat, KERN_PROC_PID | KERN_PROC_INC_THREAD, 202 kipp->ki_pid, &count); 203 if (kip == NULL) 204 return; 205 xo_emit("{ek:process_id/%5d/%d}", kipp->ki_pid); 206 xo_emit("{e:command/%-16s/%s}", kipp->ki_comm); 207 xo_open_container("threads"); 208 kinfo_proc_sort(kip, count); 209 for (i = 0; i < count; i++) { 210 kipp = &kip[i]; 211 len = sizeof(sigfastblk_addr); 212 name[0] = CTL_KERN; 213 name[1] = KERN_PROC; 214 name[2] = KERN_PROC_SIGFASTBLK; 215 name[3] = kipp->ki_tid; 216 error = sysctl(name, 4, &sigfastblk_addr, &len, NULL, 0); 217 if (error < 0) { 218 if (errno != ESRCH && errno != ENOTTY) { 219 warn("sysctl: kern.proc.fastsigblk: %d", 220 kipp->ki_tid); 221 } 222 has_sigfastblk_addr = false; 223 } else 224 has_sigfastblk_addr = true; 225 226 asprintf(&threadid, "%d", kipp->ki_tid); 227 if (threadid == NULL) 228 xo_errc(1, ENOMEM, "Failed to allocate memory in " 229 "procstat_sigfastblock()"); 230 xo_open_container(threadid); 231 xo_emit("{dk:process_id/%5d/%d} ", kipp->ki_pid); 232 xo_emit("{d:thread_id/%6d/%d} ", kipp->ki_tid); 233 xo_emit("{d:command/%-16s/%s} ", kipp->ki_comm); 234 xo_emit("{e:sigfastblock/%#-16jx/%#jx}", has_sigfastblk_addr ? 235 (uintmax_t)sigfastblk_addr : (uintmax_t)-1); 236 xo_emit("{d:sigfastblock/%#-16jx/%#jx}", has_sigfastblk_addr ? 237 (uintmax_t)sigfastblk_addr : (uintmax_t)-1); 238 xo_emit("\n"); 239 xo_close_container(threadid); 240 free(threadid); 241 } 242 xo_close_container("threads"); 243 procstat_freeprocs(procstat, kip); 244} 245