1 /* $OpenBSD: unix.c,v 1.23 2014/07/10 14:08:13 deraadt Exp $ */ 2 /* $NetBSD: unix.c,v 1.13 1995/10/03 21:42:48 thorpej Exp $ */ 3 4 /*- 5 * Copyright (c) 1983, 1988, 1993 6 * The Regents of the University of California. 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 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * Display protocol blocks in the unix domain. 35 */ 36 #include <sys/param.h> 37 #include <sys/protosw.h> 38 #include <sys/socket.h> 39 #include <sys/socketvar.h> 40 #include <sys/mbuf.h> 41 #include <sys/sysctl.h> 42 #include <sys/un.h> 43 #include <sys/unpcb.h> 44 #define _KERNEL 45 #include <sys/ucred.h> 46 #include <sys/file.h> 47 #undef _KERNEL 48 49 #include <netinet/in.h> 50 51 #include <limits.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <kvm.h> 55 #include "netstat.h" 56 57 static void unixdomainpr(const struct kinfo_file *, u_long); 58 59 void 60 unixpr(kvm_t *kvmd, u_long pcbaddr) 61 { 62 struct kinfo_file *kf; 63 int i, fcnt; 64 65 kf = kvm_getfiles(kvmd, KERN_FILE_BYFILE, 0, sizeof(*kf), &fcnt); 66 if (kf == NULL) { 67 printf("Out of memory (file table).\n"); 68 return; 69 } 70 for (i = 0; i < fcnt; i++) { 71 if (kf[i].f_count != 0 && kf[i].f_type == DTYPE_SOCKET && 72 kf[i].so_family == AF_LOCAL && (kf[i].so_pcb != 0 || 73 kf[i].unp_path[0] != '\0')) 74 unixdomainpr(&kf[i], pcbaddr); 75 } 76 } 77 78 static const char *socktype[] = 79 { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" }; 80 81 static void 82 unixdomainpr(const struct kinfo_file *kf, u_long pcbaddr) 83 { 84 static int first = 1; 85 86 if (Pflag) { 87 if (pcbaddr == kf->f_data) 88 socket_dump(pcbaddr); 89 return; 90 } 91 92 if (first) { 93 printf("Active UNIX domain sockets\n"); 94 printf("%-*.*s %-6.6s %-6.6s %-6.6s %*.*s %*.*s %*.*s %*.*s Addr\n", 95 PLEN, PLEN, "Address", "Type", "Recv-Q", "Send-Q", 96 PLEN, PLEN, "Inode", PLEN, PLEN, "Conn", 97 PLEN, PLEN, "Refs", PLEN, PLEN, "Nextref"); 98 first = 0; 99 } 100 101 #define FAKE_PTR(p) (PLEN - ((p) ? 0 : 2)), p, ((p) ? "" : "x0") 102 printf("%#*llx%s %-6.6s %6llu %6llu %#*llx%s %#*llx%s %#*llx%s %#*llx%s", 103 FAKE_PTR(kf->f_data), socktype[kf->so_type], 104 kf->so_rcv_cc, kf->so_snd_cc, 105 FAKE_PTR(kf->v_un), 106 FAKE_PTR(kf->unp_conn), 107 FAKE_PTR(kf->unp_refs), 108 FAKE_PTR(kf->unp_nextref)); 109 if (kf->unp_path[0] != '\0') 110 printf(" %.*s", KI_UNPPATHLEN, kf->unp_path); 111 putchar('\n'); 112 } 113 114 /* 115 * Dump the contents of a UNIX PCB 116 */ 117 void 118 unpcb_dump(u_long off) 119 { 120 struct unpcb unp; 121 122 if (off == 0) 123 return; 124 kread(off, &unp, sizeof(unp)); 125 126 #define p(fmt, v, sep) printf(#v " " fmt sep, unp.v); 127 #define pll(fmt, v, sep) printf(#v " " fmt sep, (long long) unp.v); 128 #define pull(fmt, v, sep) printf(#v " " fmt sep, (unsigned long long) unp.v); 129 #define pp(fmt, v, sep) printf(#v " " fmt sep, hideroot ? 0 : unp.v); 130 printf("unpcb %#lx\n ", hideroot ? 0 : off); 131 pp("%p", unp_socket, "\n "); 132 pp("%p", unp_vnode, ", "); 133 pull("%llu", unp_ino, "\n "); 134 pp("%p", unp_conn, ", "); 135 pp("%p", unp_refs, ", "); 136 pp("%p", unp_nextref, "\n "); 137 pp("%p", unp_addr, "\n "); 138 p("%#.8x", unp_flags, "\n "); 139 p("%u", unp_connid.uid, ", "); 140 p("%u", unp_connid.gid, ", "); 141 p("%d", unp_connid.pid, "\n "); 142 p("%d", unp_cc, ", "); 143 p("%d", unp_mbcnt, "\n "); 144 pll("%lld", unp_ctime.tv_sec, ", "); 145 p("%ld", unp_ctime.tv_nsec, "\n"); 146 #undef p 147 #undef pp 148 } 149