1 /* $OpenBSD: unix.c,v 1.22 2013/11/09 20:04:13 guenther 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/file.h> 46 #undef _KERNEL 47 48 #include <netinet/in.h> 49 50 #include <limits.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <kvm.h> 54 #include "netstat.h" 55 56 static void unixdomainpr(const struct kinfo_file *, u_long); 57 58 void 59 unixpr(kvm_t *kvmd, u_long pcbaddr) 60 { 61 struct kinfo_file *kf; 62 int i, fcnt; 63 64 kf = kvm_getfiles(kvmd, KERN_FILE_BYFILE, 0, sizeof(*kf), &fcnt); 65 if (kf == NULL) { 66 printf("Out of memory (file table).\n"); 67 return; 68 } 69 for (i = 0; i < fcnt; i++) { 70 if (kf[i].f_count != 0 && kf[i].f_type == DTYPE_SOCKET && 71 kf[i].so_family == AF_LOCAL && (kf[i].so_pcb != 0 || 72 kf[i].unp_path[0] != '\0')) 73 unixdomainpr(&kf[i], pcbaddr); 74 } 75 } 76 77 static const char *socktype[] = 78 { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" }; 79 80 static void 81 unixdomainpr(const struct kinfo_file *kf, u_long pcbaddr) 82 { 83 static int first = 1; 84 85 if (Pflag) { 86 if (pcbaddr == kf->f_data) 87 socket_dump(pcbaddr); 88 return; 89 } 90 91 if (first) { 92 printf("Active UNIX domain sockets\n"); 93 printf("%-*.*s %-6.6s %-6.6s %-6.6s %*.*s %*.*s %*.*s %*.*s Addr\n", 94 PLEN, PLEN, "Address", "Type", "Recv-Q", "Send-Q", 95 PLEN, PLEN, "Inode", PLEN, PLEN, "Conn", 96 PLEN, PLEN, "Refs", PLEN, PLEN, "Nextref"); 97 first = 0; 98 } 99 100 #define FAKE_PTR(p) (PLEN - ((p) ? 0 : 2)), p, ((p) ? "" : "x0") 101 printf("%#*llx%s %-6.6s %6llu %6llu %#*llx%s %#*llx%s %#*llx%s %#*llx%s", 102 FAKE_PTR(kf->f_data), socktype[kf->so_type], 103 kf->so_rcv_cc, kf->so_snd_cc, 104 FAKE_PTR(kf->v_un), 105 FAKE_PTR(kf->unp_conn), 106 FAKE_PTR(kf->unp_refs), 107 FAKE_PTR(kf->unp_nextref)); 108 if (kf->unp_path[0] != '\0') 109 printf(" %.*s", KI_UNPPATHLEN, kf->unp_path); 110 putchar('\n'); 111 } 112 113 /* 114 * Dump the contents of a UNIX PCB 115 */ 116 void 117 unpcb_dump(u_long off) 118 { 119 struct unpcb unp; 120 121 if (off == 0) 122 return; 123 kread(off, &unp, sizeof(unp)); 124 125 #define p(fmt, v, sep) printf(#v " " fmt sep, unp.v); 126 #define pll(fmt, v, sep) printf(#v " " fmt sep, (long long) unp.v); 127 #define pull(fmt, v, sep) printf(#v " " fmt sep, (unsigned long long) unp.v); 128 #define pp(fmt, v, sep) printf(#v " " fmt sep, hideroot ? 0 : unp.v); 129 printf("unpcb %#lx\n ", hideroot ? 0 : off); 130 pp("%p", unp_socket, "\n "); 131 pp("%p", unp_vnode, ", "); 132 pull("%llu", unp_ino, "\n "); 133 pp("%p", unp_conn, ", "); 134 pp("%p", unp_refs, ", "); 135 pp("%p", unp_nextref, "\n "); 136 pp("%p", unp_addr, "\n "); 137 p("%#.8x", unp_flags, "\n "); 138 p("%u", unp_connid.uid, ", "); 139 p("%u", unp_connid.gid, ", "); 140 p("%d", unp_connid.pid, "\n "); 141 p("%d", unp_cc, ", "); 142 p("%d", unp_mbcnt, "\n "); 143 pll("%lld", unp_ctime.tv_sec, ", "); 144 p("%ld", unp_ctime.tv_nsec, "\n"); 145 #undef p 146 #undef pp 147 } 148