1 /* $OpenBSD: unix.c,v 1.13 2007/12/19 01:47:00 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 struct uio; 46 struct proc; 47 #include <sys/file.h> 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(struct socket *, caddr_t); 58 59 static struct file *file, *fileNFILE; 60 static int nfiles; 61 extern kvm_t *kvmd; 62 63 void 64 unixpr(u_long off) 65 { 66 struct file *fp; 67 struct socket sock, *so = &sock; 68 char *filebuf; 69 struct protosw *unixsw = (struct protosw *)off; 70 71 filebuf = kvm_getfiles(kvmd, KERN_FILE, 0, &nfiles); 72 if (filebuf == NULL) { 73 printf("Out of memory (file table).\n"); 74 return; 75 } 76 file = (struct file *)(filebuf + sizeof(fp)); 77 fileNFILE = file + nfiles; 78 for (fp = file; fp < fileNFILE; fp++) { 79 if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET) 80 continue; 81 if (kread((u_long)fp->f_data, so, sizeof (*so))) 82 continue; 83 /* kludge */ 84 if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2) 85 if (so->so_pcb) 86 unixdomainpr(so, fp->f_data); 87 } 88 } 89 90 static char *socktype[] = 91 { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" }; 92 93 static void 94 unixdomainpr(struct socket *so, caddr_t soaddr) 95 { 96 struct unpcb unpcb, *unp = &unpcb; 97 struct mbuf mbuf, *m; 98 struct sockaddr_un *sa = NULL; 99 static int first = 1; 100 101 if (kread((u_long)so->so_pcb, unp, sizeof (*unp))) 102 return; 103 if (unp->unp_addr) { 104 m = &mbuf; 105 if (kread((u_long)unp->unp_addr, m, sizeof (*m))) 106 m = NULL; 107 sa = (struct sockaddr_un *)(m->m_dat); 108 } else 109 m = NULL; 110 if (first) { 111 printf("Active UNIX domain sockets\n"); 112 printf("%-*.*s %-6.6s %-6.6s %-6.6s %*.*s %*.*s %*.*s %*.*s Addr\n", 113 PLEN, PLEN, "Address", "Type", "Recv-Q", "Send-Q", 114 PLEN, PLEN, "Inode", PLEN, PLEN, "Conn", 115 PLEN, PLEN, "Refs", PLEN, PLEN, "Nextref"); 116 first = 0; 117 } 118 printf("%*p %-6.6s %6ld %6ld %*p %*p %*p %*p", 119 PLEN, soaddr, socktype[so->so_type], so->so_rcv.sb_cc, 120 so->so_snd.sb_cc, PLEN, unp->unp_vnode, PLEN, unp->unp_conn, 121 PLEN, unp->unp_refs, PLEN, unp->unp_nextref); 122 if (m) 123 printf(" %.*s", 124 (int)(m->m_len - (int)(sizeof(*sa) - sizeof(sa->sun_path))), 125 sa->sun_path); 126 putchar('\n'); 127 } 128