1 /* $OpenBSD: unix.c,v 1.11 2004/03/13 22:02:13 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 #ifndef lint 34 #if 0 35 static char sccsid[] = "from: @(#)unix.c 8.1 (Berkeley) 6/6/93"; 36 #else 37 static char *rcsid = "$OpenBSD: unix.c,v 1.11 2004/03/13 22:02:13 deraadt Exp $"; 38 #endif 39 #endif /* not lint */ 40 41 /* 42 * Display protocol blocks in the unix domain. 43 */ 44 #include <sys/param.h> 45 #include <sys/protosw.h> 46 #include <sys/socket.h> 47 #include <sys/socketvar.h> 48 #include <sys/mbuf.h> 49 #include <sys/sysctl.h> 50 #include <sys/un.h> 51 #include <sys/unpcb.h> 52 #define _KERNEL 53 struct uio; 54 struct proc; 55 #include <sys/file.h> 56 57 #include <netinet/in.h> 58 59 #include <limits.h> 60 #include <stdio.h> 61 #include <stdlib.h> 62 #include <kvm.h> 63 #include "netstat.h" 64 65 static void unixdomainpr(struct socket *, caddr_t); 66 67 static struct file *file, *fileNFILE; 68 static int nfiles; 69 extern kvm_t *kvmd; 70 71 void 72 unixpr(u_long off) 73 { 74 struct file *fp; 75 struct socket sock, *so = &sock; 76 char *filebuf; 77 struct protosw *unixsw = (struct protosw *)off; 78 79 filebuf = (char *)kvm_getfiles(kvmd, KERN_FILE, 0, &nfiles); 80 if (filebuf == NULL) { 81 printf("Out of memory (file table).\n"); 82 return; 83 } 84 file = (struct file *)(filebuf + sizeof(fp)); 85 fileNFILE = file + nfiles; 86 for (fp = file; fp < fileNFILE; fp++) { 87 if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET) 88 continue; 89 if (kread((u_long)fp->f_data, (char *)so, sizeof (*so))) 90 continue; 91 /* kludge */ 92 if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2) 93 if (so->so_pcb) 94 unixdomainpr(so, fp->f_data); 95 } 96 } 97 98 static char *socktype[] = 99 { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" }; 100 101 static void 102 unixdomainpr(struct socket *so, caddr_t soaddr) 103 { 104 struct unpcb unpcb, *unp = &unpcb; 105 struct mbuf mbuf, *m; 106 struct sockaddr_un *sa = NULL; 107 static int first = 1; 108 109 if (kread((u_long)so->so_pcb, (char *)unp, sizeof (*unp))) 110 return; 111 if (unp->unp_addr) { 112 m = &mbuf; 113 if (kread((u_long)unp->unp_addr, (char *)m, sizeof (*m))) 114 m = NULL; 115 sa = (struct sockaddr_un *)(m->m_dat); 116 } else 117 m = NULL; 118 if (first) { 119 printf("Active UNIX domain sockets\n"); 120 printf("%-*.*s %-6.6s %-6.6s %-6.6s %*.*s %*.*s %*.*s %*.*s Addr\n", 121 PLEN, PLEN, "Address", "Type", "Recv-Q", "Send-Q", 122 PLEN, PLEN, "Inode", PLEN, PLEN, "Conn", 123 PLEN, PLEN, "Refs", PLEN, PLEN, "Nextref"); 124 first = 0; 125 } 126 printf("%*p %-6.6s %6ld %6ld %*p %*p %*p %*p", 127 PLEN, soaddr, socktype[so->so_type], so->so_rcv.sb_cc, 128 so->so_snd.sb_cc, PLEN, unp->unp_vnode, PLEN, unp->unp_conn, 129 PLEN, unp->unp_refs, PLEN, unp->unp_nextref); 130 if (m) 131 printf(" %.*s", 132 (int)(m->m_len - (int)(sizeof(*sa) - sizeof(sa->sun_path))), 133 sa->sun_path); 134 putchar('\n'); 135 } 136