signals.c revision 1.2.2.3
1 1.2.2.2 uebayasi /* $NetBSD: signals.c,v 1.2.2.3 2010/08/17 06:48:02 uebayasi Exp $ */ 2 1.2.2.2 uebayasi 3 1.2.2.2 uebayasi /* 4 1.2.2.2 uebayasi * Copyright (c) 2010 Antti Kantee. All Rights Reserved. 5 1.2.2.2 uebayasi * 6 1.2.2.2 uebayasi * Redistribution and use in source and binary forms, with or without 7 1.2.2.2 uebayasi * modification, are permitted provided that the following conditions 8 1.2.2.2 uebayasi * are met: 9 1.2.2.2 uebayasi * 1. Redistributions of source code must retain the above copyright 10 1.2.2.2 uebayasi * notice, this list of conditions and the following disclaimer. 11 1.2.2.2 uebayasi * 2. Redistributions in binary form must reproduce the above copyright 12 1.2.2.2 uebayasi * notice, this list of conditions and the following disclaimer in the 13 1.2.2.2 uebayasi * documentation and/or other materials provided with the distribution. 14 1.2.2.2 uebayasi * 15 1.2.2.2 uebayasi * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 16 1.2.2.2 uebayasi * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 1.2.2.2 uebayasi * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 1.2.2.2 uebayasi * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 1.2.2.2 uebayasi * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 1.2.2.2 uebayasi * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 1.2.2.2 uebayasi * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 1.2.2.2 uebayasi * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 1.2.2.2 uebayasi * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 1.2.2.2 uebayasi * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 1.2.2.2 uebayasi * SUCH DAMAGE. 26 1.2.2.2 uebayasi */ 27 1.2.2.2 uebayasi 28 1.2.2.2 uebayasi #include <sys/cdefs.h> 29 1.2.2.2 uebayasi __KERNEL_RCSID(0, "$NetBSD: signals.c,v 1.2.2.3 2010/08/17 06:48:02 uebayasi Exp $"); 30 1.2.2.2 uebayasi 31 1.2.2.2 uebayasi #include <sys/param.h> 32 1.2.2.2 uebayasi #include <sys/atomic.h> 33 1.2.2.2 uebayasi #include <sys/event.h> 34 1.2.2.2 uebayasi #include <sys/proc.h> 35 1.2.2.2 uebayasi #include <sys/signal.h> 36 1.2.2.2 uebayasi 37 1.2.2.2 uebayasi #include <rump/rump.h> 38 1.2.2.2 uebayasi #include <rump/rumpuser.h> 39 1.2.2.2 uebayasi 40 1.2.2.2 uebayasi #include "rumpkern_if_priv.h" 41 1.2.2.2 uebayasi 42 1.2.2.2 uebayasi const struct filterops sig_filtops; 43 1.2.2.2 uebayasi sigset_t sigcantmask; 44 1.2.2.2 uebayasi 45 1.2.2.2 uebayasi /* RUMP_SIGMODEL_PANIC */ 46 1.2.2.2 uebayasi 47 1.2.2.2 uebayasi static void 48 1.2.2.2 uebayasi rumpsig_panic(pid_t target, int signo) 49 1.2.2.2 uebayasi { 50 1.2.2.2 uebayasi 51 1.2.2.2 uebayasi switch (signo) { 52 1.2.2.2 uebayasi case SIGSYS: 53 1.2.2.2 uebayasi break; 54 1.2.2.2 uebayasi default: 55 1.2.2.2 uebayasi panic("unhandled signal %d", signo); 56 1.2.2.2 uebayasi } 57 1.2.2.2 uebayasi } 58 1.2.2.2 uebayasi 59 1.2.2.2 uebayasi /* RUMP_SIGMODEL_IGNORE */ 60 1.2.2.2 uebayasi 61 1.2.2.2 uebayasi static void 62 1.2.2.2 uebayasi rumpsig_ignore(pid_t target, int signo) 63 1.2.2.2 uebayasi { 64 1.2.2.2 uebayasi 65 1.2.2.2 uebayasi return; 66 1.2.2.2 uebayasi } 67 1.2.2.2 uebayasi 68 1.2.2.2 uebayasi /* RUMP_SIGMODEL_HOST */ 69 1.2.2.2 uebayasi 70 1.2.2.2 uebayasi static void 71 1.2.2.2 uebayasi rumpsig_host(pid_t target, int signo) 72 1.2.2.2 uebayasi { 73 1.2.2.2 uebayasi int error; 74 1.2.2.2 uebayasi 75 1.2.2.2 uebayasi rumpuser_kill(target, signo, &error); 76 1.2.2.2 uebayasi } 77 1.2.2.2 uebayasi 78 1.2.2.2 uebayasi /* RUMP_SIGMODEL_RAISE */ 79 1.2.2.2 uebayasi 80 1.2.2.2 uebayasi static void 81 1.2.2.2 uebayasi rumpsig_raise(pid_t target, int signo) 82 1.2.2.2 uebayasi { 83 1.2.2.2 uebayasi int error; 84 1.2.2.2 uebayasi 85 1.2.2.2 uebayasi rumpuser_kill(RUMPUSER_PID_SELF, signo, &error); 86 1.2.2.2 uebayasi } 87 1.2.2.2 uebayasi 88 1.2.2.2 uebayasi typedef void (*rumpsig_fn)(pid_t pid, int sig); 89 1.2.2.2 uebayasi 90 1.2.2.2 uebayasi rumpsig_fn rumpsig = rumpsig_panic; 91 1.2.2.2 uebayasi 92 1.2.2.2 uebayasi /* 93 1.2.2.2 uebayasi * Set signal delivery model. It would be nice if we could 94 1.2.2.2 uebayasi * take a functional argument. But then we'd need some 95 1.2.2.2 uebayasi * OS independent way to represent a signal number and also 96 1.2.2.2 uebayasi * a method for easy processing (parsing is boring). 97 1.2.2.2 uebayasi * 98 1.2.2.2 uebayasi * Plus, upcalls from the rump kernel into process space except 99 1.2.2.2 uebayasi * via rumpuser is a somewhat gray area now. 100 1.2.2.2 uebayasi */ 101 1.2.2.2 uebayasi void 102 1.2.2.2 uebayasi rump_boot_setsigmodel(enum rump_sigmodel model) 103 1.2.2.2 uebayasi { 104 1.2.2.2 uebayasi 105 1.2.2.2 uebayasi switch (model) { 106 1.2.2.2 uebayasi case RUMP_SIGMODEL_PANIC: 107 1.2.2.2 uebayasi atomic_swap_ptr(&rumpsig, rumpsig_panic); 108 1.2.2.2 uebayasi break; 109 1.2.2.2 uebayasi case RUMP_SIGMODEL_IGNORE: 110 1.2.2.2 uebayasi atomic_swap_ptr(&rumpsig, rumpsig_ignore); 111 1.2.2.2 uebayasi break; 112 1.2.2.2 uebayasi case RUMP_SIGMODEL_HOST: 113 1.2.2.2 uebayasi atomic_swap_ptr(&rumpsig, rumpsig_host); 114 1.2.2.2 uebayasi break; 115 1.2.2.2 uebayasi case RUMP_SIGMODEL_RAISE: 116 1.2.2.2 uebayasi atomic_swap_ptr(&rumpsig, rumpsig_raise); 117 1.2.2.2 uebayasi break; 118 1.2.2.2 uebayasi } 119 1.2.2.2 uebayasi } 120 1.2.2.2 uebayasi 121 1.2.2.2 uebayasi void 122 1.2.2.2 uebayasi psignal(struct proc *p, int sig) 123 1.2.2.2 uebayasi { 124 1.2.2.2 uebayasi 125 1.2.2.2 uebayasi rumpsig(p->p_pid, sig); 126 1.2.2.2 uebayasi } 127 1.2.2.2 uebayasi 128 1.2.2.2 uebayasi void 129 1.2.2.2 uebayasi pgsignal(struct pgrp *pgrp, int sig, int checktty) 130 1.2.2.2 uebayasi { 131 1.2.2.2 uebayasi 132 1.2.2.2 uebayasi rumpsig(-pgrp->pg_id, sig); 133 1.2.2.2 uebayasi } 134 1.2.2.2 uebayasi 135 1.2.2.2 uebayasi void 136 1.2.2.2 uebayasi kpsignal(struct proc *p, ksiginfo_t *ksi, void *data) 137 1.2.2.2 uebayasi { 138 1.2.2.2 uebayasi 139 1.2.2.2 uebayasi rumpsig(p->p_pid, ksi->ksi_signo); 140 1.2.2.2 uebayasi } 141 1.2.2.2 uebayasi 142 1.2.2.2 uebayasi void 143 1.2.2.2 uebayasi kpgsignal(struct pgrp *pgrp, ksiginfo_t *ksi, void *data, int checkctty) 144 1.2.2.2 uebayasi { 145 1.2.2.2 uebayasi 146 1.2.2.2 uebayasi rumpsig(-pgrp->pg_id, ksi->ksi_signo); 147 1.2.2.2 uebayasi } 148 1.2.2.2 uebayasi 149 1.2.2.2 uebayasi int 150 1.2.2.2 uebayasi sigispending(struct lwp *l, int signo) 151 1.2.2.2 uebayasi { 152 1.2.2.2 uebayasi 153 1.2.2.2 uebayasi return 0; 154 1.2.2.2 uebayasi } 155 1.2.2.2 uebayasi 156 1.2.2.2 uebayasi void 157 1.2.2.2 uebayasi sigpending1(struct lwp *l, sigset_t *ss) 158 1.2.2.2 uebayasi { 159 1.2.2.2 uebayasi 160 1.2.2.2 uebayasi sigemptyset(ss); 161 1.2.2.2 uebayasi } 162 1.2.2.2 uebayasi 163 1.2.2.2 uebayasi int 164 1.2.2.2 uebayasi sigismasked(struct lwp *l, int sig) 165 1.2.2.2 uebayasi { 166 1.2.2.2 uebayasi 167 1.2.2.2 uebayasi return 0; 168 1.2.2.2 uebayasi } 169 1.2.2.2 uebayasi 170 1.2.2.2 uebayasi void 171 1.2.2.2 uebayasi sigclearall(struct proc *p, const sigset_t *mask, ksiginfoq_t *kq) 172 1.2.2.2 uebayasi { 173 1.2.2.2 uebayasi 174 1.2.2.2 uebayasi /* nada */ 175 1.2.2.2 uebayasi } 176 1.2.2.2 uebayasi 177 1.2.2.2 uebayasi void 178 1.2.2.2 uebayasi ksiginfo_queue_drain0(ksiginfoq_t *kq) 179 1.2.2.2 uebayasi { 180 1.2.2.2 uebayasi 181 1.2.2.2 uebayasi if (!(CIRCLEQ_EMPTY(kq))) 182 1.2.2.2 uebayasi panic("how did that get there?"); 183 1.2.2.2 uebayasi } 184 1.2.2.3 uebayasi 185 1.2.2.3 uebayasi void 186 1.2.2.3 uebayasi siginit(struct proc *p) 187 1.2.2.3 uebayasi { 188 1.2.2.3 uebayasi 189 1.2.2.3 uebayasi /* nada (?) */ 190 1.2.2.3 uebayasi } 191
Indexes created Tue Sep 30 07:10:03 GMT 2025