/* $NetBSD: procfs_status.c,v 1.40 2020/05/23 23:42:43 ad Exp $ */ /* * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94 */ /* * Copyright (c) 1993 Jan-Simon Pendry * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)procfs_status.c 8.4 (Berkeley) 6/15/94 */ #include __KERNEL_RCSID(0, "$NetBSD: procfs_status.c,v 1.40 2020/05/23 23:42:43 ad Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include static int procfs_status_netbsd(struct lwp *l, struct uio *uio) { struct session *sess; struct tty *tp; kauth_cred_t cr; struct proc *p = l->l_proc; char *ps; const char *sep; const char *emulname = curlwp->l_proc->p_emul->e_name; int pid, ppid, pgid, sid; u_int i; char psbuf[256+MAXHOSTNAMELEN]; /* XXX - conservative */ uint16_t ngroups; mutex_enter(&proc_lock); mutex_enter(p->p_lock); pid = p->p_pid; ppid = p->p_ppid; pgid = p->p_pgrp->pg_id; sess = p->p_pgrp->pg_session; sid = sess->s_sid; ps = psbuf; if (strncmp(emulname, "linux", 5) == 0) { ps += snprintf(ps, sizeof(psbuf), "Name:\t%s\n", p->p_comm); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "Pid:\t%d\n", pid); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "PPid:\t%d\n", ppid); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "TracerPid:\t%d\n", 0); cr = p->p_cred; ngroups = kauth_cred_ngroups(cr); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "Groups:\t"); for (i = 0; i < ngroups; i++) ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%d ", kauth_cred_group(cr, i)); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "\n"); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "VmPeak:\t%8ju kB\n", (intmax_t)p->p_rlimit[RLIMIT_DATA].rlim_cur / 1024); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "VmSize:\t%8ju kB\n", (intmax_t)p->p_rlimit[RLIMIT_DATA].rlim_cur / 1024); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "VmRSS:\t%8ju kB\n", (intmax_t)p->p_rlimit[RLIMIT_RSS].rlim_cur / 1024); } else { /* comm pid ppid pgid sid maj,min ctty,sldr start ut st wmsg uid gid groups ... */ memcpy(ps, p->p_comm, MAXCOMLEN); ps[MAXCOMLEN] = '\0'; ps += strlen(ps); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %d %d %d %d ", pid, ppid, pgid, sid); if ((p->p_lflag & PL_CONTROLT) && (tp = sess->s_ttyp)) ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%llu,%llu ", (unsigned long long)major(tp->t_dev), (unsigned long long)minor(tp->t_dev)); else ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%d,%d ", -1, -1); sep = ""; if (sess->s_ttyvp) { ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%sctty", sep); sep = ","; } if (SESS_LEADER(p)) { ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%ssldr", sep); sep = ","; } if (*sep != ',') ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "noflags"); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %lld,%ld", (long long)p->p_stats->p_start.tv_sec, (long)p->p_stats->p_start.tv_usec); { struct timeval ut, st; calcru(p, &ut, &st, (void *) 0, NULL); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %lld,%ld %lld,%ld", (long long)ut.tv_sec, (long)ut.tv_usec, (long long)st.tv_sec, (long)st.tv_usec); } lwp_lock(l); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %s", (l->l_wchan && l->l_wmesg) ? l->l_wmesg : "nochan"); lwp_unlock(l); cr = p->p_cred; ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %d", kauth_cred_geteuid(cr)); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), " %d", kauth_cred_getegid(cr)); ngroups = kauth_cred_ngroups(cr); for (i = 0; i < ngroups; i++) ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), ",%d", kauth_cred_group(cr, i)); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "\n"); } mutex_exit(p->p_lock); mutex_exit(&proc_lock); return (uiomove_frombuf(psbuf, ps - psbuf, uio)); } static int procfs_status_linux(struct lwp *l, struct uio *uio) { kauth_cred_t cr; struct proc *p = l->l_proc; char *ps; int pid, ppid; u_int i; char psbuf[256+MAXHOSTNAMELEN]; /* XXX - conservative */ uint16_t ngroups; mutex_enter(&proc_lock); mutex_enter(p->p_lock); pid = p->p_pid; ppid = p->p_ppid; ps = psbuf; ps += snprintf(ps, sizeof(psbuf), "Name:\t%s\n", p->p_comm); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "Pid:\t%d\n", pid); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "PPid:\t%d\n", ppid); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "TracerPid:\t%d\n", 0); cr = p->p_cred; ngroups = kauth_cred_ngroups(cr); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "Groups:\t"); for (i = 0; i < ngroups; i++) ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "%d ", kauth_cred_group(cr, i)); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "\n"); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "VmPeak:\t%8" PRIu64 " kB\n", p->p_rlimit[RLIMIT_DATA].rlim_cur / 1024); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "VmSize:\t%8" PRIu64 " kB\n", p->p_rlimit[RLIMIT_DATA].rlim_cur / 1024); ps += snprintf(ps, sizeof(psbuf) - (ps - psbuf), "VmRSS:\t%8" PRIu64 " kB\n", p->p_rlimit[RLIMIT_RSS].rlim_cur / 1024); mutex_exit(p->p_lock); mutex_exit(&proc_lock); return (uiomove_frombuf(psbuf, ps - psbuf, uio)); } int procfs_dostatus(struct lwp *curl, struct lwp *l, struct pfsnode *pfs, struct uio *uio) { const char *emulname = curlwp->l_proc->p_emul->e_name; if (uio->uio_rw != UIO_READ) return (EOPNOTSUPP); if (strncmp(emulname, "linux", 5) == 0) { return procfs_status_linux(l, uio); } else { return procfs_status_netbsd(l, uio); } }