Annotation of src/usr.bin/netstat/unix.c, Revision 1.15
1.15 ! bluhm 1: /* $OpenBSD: unix.c,v 1.14 2010/04/28 18:22:11 jsg Exp $ */
1.1 deraadt 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.
1.10 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 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:
1.5 millert 51: #include <limits.h>
1.1 deraadt 52: #include <stdio.h>
53: #include <stdlib.h>
54: #include <kvm.h>
55: #include "netstat.h"
56:
1.15 ! bluhm 57: static void unixdomainpr(struct socket *, caddr_t, u_long);
1.1 deraadt 58:
59: static struct file *file, *fileNFILE;
1.14 jsg 60: static int fcnt;
1.1 deraadt 61: extern kvm_t *kvmd;
62:
63: void
1.15 ! bluhm 64: unixpr(u_long off, u_long pcbaddr)
1.1 deraadt 65: {
1.7 mpech 66: struct file *fp;
1.1 deraadt 67: struct socket sock, *so = &sock;
68: char *filebuf;
69: struct protosw *unixsw = (struct protosw *)off;
70:
1.14 jsg 71: filebuf = kvm_getfiles(kvmd, KERN_FILE, 0, &fcnt);
1.11 deraadt 72: if (filebuf == NULL) {
1.1 deraadt 73: printf("Out of memory (file table).\n");
74: return;
75: }
76: file = (struct file *)(filebuf + sizeof(fp));
1.14 jsg 77: fileNFILE = file + fcnt;
1.1 deraadt 78: for (fp = file; fp < fileNFILE; fp++) {
79: if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET)
80: continue;
1.12 jaredy 81: if (kread((u_long)fp->f_data, so, sizeof (*so)))
1.1 deraadt 82: continue;
83: /* kludge */
84: if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2)
85: if (so->so_pcb)
1.15 ! bluhm 86: unixdomainpr(so, fp->f_data, pcbaddr);
1.1 deraadt 87: }
88: }
89:
90: static char *socktype[] =
91: { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };
92:
93: static void
1.15 ! bluhm 94: unixdomainpr(struct socket *so, caddr_t soaddr, u_long pcbaddr)
1.1 deraadt 95: {
96: struct unpcb unpcb, *unp = &unpcb;
97: struct mbuf mbuf, *m;
1.6 itojun 98: struct sockaddr_un *sa = NULL;
1.1 deraadt 99: static int first = 1;
100:
1.15 ! bluhm 101: if (Pflag) {
! 102: if (pcbaddr == (u_long)soaddr)
! 103: socket_dump(pcbaddr);
! 104: return;
! 105: }
! 106:
1.12 jaredy 107: if (kread((u_long)so->so_pcb, unp, sizeof (*unp)))
1.1 deraadt 108: return;
109: if (unp->unp_addr) {
110: m = &mbuf;
1.12 jaredy 111: if (kread((u_long)unp->unp_addr, m, sizeof (*m)))
1.11 deraadt 112: m = NULL;
1.1 deraadt 113: sa = (struct sockaddr_un *)(m->m_dat);
114: } else
1.11 deraadt 115: m = NULL;
1.1 deraadt 116: if (first) {
117: printf("Active UNIX domain sockets\n");
1.11 deraadt 118: printf("%-*.*s %-6.6s %-6.6s %-6.6s %*.*s %*.*s %*.*s %*.*s Addr\n",
1.5 millert 119: PLEN, PLEN, "Address", "Type", "Recv-Q", "Send-Q",
120: PLEN, PLEN, "Inode", PLEN, PLEN, "Conn",
121: PLEN, PLEN, "Refs", PLEN, PLEN, "Nextref");
1.1 deraadt 122: first = 0;
123: }
1.5 millert 124: printf("%*p %-6.6s %6ld %6ld %*p %*p %*p %*p",
125: PLEN, soaddr, socktype[so->so_type], so->so_rcv.sb_cc,
126: so->so_snd.sb_cc, PLEN, unp->unp_vnode, PLEN, unp->unp_conn,
127: PLEN, unp->unp_refs, PLEN, unp->unp_nextref);
1.1 deraadt 128: if (m)
129: printf(" %.*s",
1.6 itojun 130: (int)(m->m_len - (int)(sizeof(*sa) - sizeof(sa->sun_path))),
1.1 deraadt 131: sa->sun_path);
132: putchar('\n');
1.15 ! bluhm 133: }
! 134:
! 135: /*
! 136: * Dump the contents of a UNIX PCB
! 137: */
! 138: void
! 139: unpcb_dump(u_long off)
! 140: {
! 141: struct unpcb unp;
! 142:
! 143: if (off == 0)
! 144: return;
! 145: kread(off, &unp, sizeof(unp));
! 146:
! 147: #define p(fmt, v, sep) printf(#v " " fmt sep, unp.v);
! 148: printf("unpcb %#lx\n ", off);
! 149: p("%p", unp_socket, "\n ");
! 150: p("%p", unp_vnode, ", ");
! 151: p("%u", unp_ino, "\n ");
! 152: p("%p", unp_conn, ", ");
! 153: p("%p", unp_refs, ", ");
! 154: p("%p", unp_nextref, "\n ");
! 155: p("%p", unp_addr, "\n ");
! 156: p("%#0.8x", unp_flags, "\n ");
! 157: p("%u", unp_connid.uid, ", ");
! 158: p("%u", unp_connid.gid, ", ");
! 159: p("%d", unp_connid.pid, "\n ");
! 160: p("%d", unp_cc, ", ");
! 161: p("%d", unp_mbcnt, "\n ");
! 162: p("%d", unp_ctime.tv_sec, ", ");
! 163: p("%ld", unp_ctime.tv_nsec, "\n");
! 164: #undef p
1.1 deraadt 165: }
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