Annotation of src/usr.bin/netstat/unix.c, Revision 1.23
1.23 ! deraadt 1: /* $OpenBSD: unix.c,v 1.22 2013/11/09 20:04:13 guenther 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
1.23 ! deraadt 45: #include <sys/ucred.h>
1.1 deraadt 46: #include <sys/file.h>
1.21 guenther 47: #undef _KERNEL
1.1 deraadt 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:
1.21 guenther 57: static void unixdomainpr(const struct kinfo_file *, u_long);
1.1 deraadt 58:
59: void
1.21 guenther 60: unixpr(kvm_t *kvmd, u_long pcbaddr)
1.1 deraadt 61: {
1.21 guenther 62: struct kinfo_file *kf;
63: int i, fcnt;
1.1 deraadt 64:
1.21 guenther 65: kf = kvm_getfiles(kvmd, KERN_FILE_BYFILE, 0, sizeof(*kf), &fcnt);
66: if (kf == NULL) {
1.1 deraadt 67: printf("Out of memory (file table).\n");
68: return;
69: }
1.21 guenther 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);
1.1 deraadt 75: }
76: }
77:
1.21 guenther 78: static const char *socktype[] =
1.1 deraadt 79: { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };
80:
81: static void
1.21 guenther 82: unixdomainpr(const struct kinfo_file *kf, u_long pcbaddr)
1.1 deraadt 83: {
84: static int first = 1;
85:
1.15 bluhm 86: if (Pflag) {
1.21 guenther 87: if (pcbaddr == kf->f_data)
1.15 bluhm 88: socket_dump(pcbaddr);
89: return;
90: }
91:
1.1 deraadt 92: if (first) {
93: printf("Active UNIX domain sockets\n");
1.11 deraadt 94: printf("%-*.*s %-6.6s %-6.6s %-6.6s %*.*s %*.*s %*.*s %*.*s Addr\n",
1.5 millert 95: PLEN, PLEN, "Address", "Type", "Recv-Q", "Send-Q",
96: PLEN, PLEN, "Inode", PLEN, PLEN, "Conn",
97: PLEN, PLEN, "Refs", PLEN, PLEN, "Nextref");
1.1 deraadt 98: first = 0;
99: }
1.21 guenther 100:
101: #define FAKE_PTR(p) (PLEN - ((p) ? 0 : 2)), p, ((p) ? "" : "x0")
1.22 guenther 102: printf("%#*llx%s %-6.6s %6llu %6llu %#*llx%s %#*llx%s %#*llx%s %#*llx%s",
1.21 guenther 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);
1.1 deraadt 111: putchar('\n');
1.15 bluhm 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:
1.18 deraadt 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);
1.19 deraadt 128: #define pull(fmt, v, sep) printf(#v " " fmt sep, (unsigned long long) unp.v);
1.16 deraadt 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, ", ");
1.19 deraadt 133: pull("%llu", unp_ino, "\n ");
1.16 deraadt 134: pp("%p", unp_conn, ", ");
135: pp("%p", unp_refs, ", ");
136: pp("%p", unp_nextref, "\n ");
137: pp("%p", unp_addr, "\n ");
1.20 guenther 138: p("%#.8x", unp_flags, "\n ");
1.18 deraadt 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");
1.15 bluhm 146: #undef p
1.16 deraadt 147: #undef pp
1.1 deraadt 148: }
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