2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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36 static char sccsid[] = "@(#)unix.c 8.1 (Berkeley) 6/6/93";
40 #include <sys/cdefs.h>
41 __FBSDID("$FreeBSD$");
44 * Display protocol blocks in the unix domain.
46 #include <sys/param.h>
47 #include <sys/queue.h>
48 #include <sys/protosw.h>
49 #include <sys/socket.h>
50 #include <sys/socketvar.h>
52 #include <sys/sysctl.h>
54 #include <sys/unpcb.h>
56 #include <netinet/in.h>
68 static void unixdomainpr(struct xunpcb *, struct xsocket *);
70 static const char *const socktype[] =
71 { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };
74 pcblist_sysctl(int type, char **bufp)
78 char mibvar[sizeof "net.local.seqpacket.pcblist"];
80 sprintf(mibvar, "net.local.%s.pcblist", socktype[type]);
83 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
85 warn("sysctl: %s", mibvar);
88 if ((buf = malloc(len)) == 0) {
89 warnx("malloc %lu bytes", (u_long)len);
92 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
93 warn("sysctl: %s", mibvar);
102 pcblist_kvm(u_long count_off, u_long gencnt_off, u_long head_off, char **bufp)
104 struct unp_head head;
105 struct unpcb *unp, unp_conn;
110 unp_gen_t unp_gencnt;
115 if (count_off == 0 || gencnt_off == 0)
119 kread(count_off, &unp_count, sizeof(unp_count));
120 len = 2 * sizeof(xug) + (unp_count + unp_count / 8) * sizeof(xu);
121 if ((buf = malloc(len)) == 0) {
122 warnx("malloc %lu bytes", (u_long)len);
127 #define COPYOUT(obj, size) do { \
128 if (len < (size)) { \
129 warnx("buffer size exceeded"); \
132 bcopy((obj), p, (size)); \
137 #define KREAD(off, buf, len) do { \
138 if (kread((uintptr_t)(off), (buf), (len)) != 0) \
142 /* Write out header. */
143 kread(gencnt_off, &unp_gencnt, sizeof(unp_gencnt));
144 xug.xug_len = sizeof xug;
145 xug.xug_count = unp_count;
146 xug.xug_gen = unp_gencnt;
148 COPYOUT(&xug, sizeof xug);
150 /* Walk the PCB list. */
151 xu.xu_len = sizeof xu;
152 KREAD(head_off, &head, sizeof(head));
153 LIST_FOREACH(unp, &head, unp_link) {
155 KREAD(unp, &xu.xu_unp, sizeof (*unp));
158 if (unp->unp_gencnt > unp_gencnt)
160 if (unp->unp_addr != NULL) {
161 KREAD(unp->unp_addr, &sun_len, sizeof(sun_len));
162 KREAD(unp->unp_addr, &xu.xu_addr, sun_len);
164 if (unp->unp_conn != NULL) {
165 KREAD(unp->unp_conn, &unp_conn, sizeof(unp_conn));
166 if (unp_conn.unp_addr != NULL) {
167 KREAD(unp_conn.unp_addr, &sun_len,
169 KREAD(unp_conn.unp_addr, &xu.xu_caddr, sun_len);
172 KREAD(unp->unp_socket, &so, sizeof(so));
173 if (sotoxsocket(&so, &xu.xu_socket) != 0)
175 COPYOUT(&xu, sizeof(xu));
178 /* Reread the counts and write the footer. */
179 kread(count_off, &unp_count, sizeof(unp_count));
180 kread(gencnt_off, &unp_gencnt, sizeof(unp_gencnt));
181 xug.xug_count = unp_count;
182 xug.xug_gen = unp_gencnt;
183 COPYOUT(&xug, sizeof xug);
196 unixpr(u_long count_off, u_long gencnt_off, u_long dhead_off, u_long shead_off)
201 struct xunpgen *xug, *oxug;
204 for (type = SOCK_STREAM; type <= SOCK_SEQPACKET; type++) {
206 ret = pcblist_sysctl(type, &buf);
208 ret = pcblist_kvm(count_off, gencnt_off,
209 type == SOCK_STREAM ? shead_off :
210 (type == SOCK_DGRAM ? dhead_off : 0), &buf);
216 oxug = xug = (struct xunpgen *)buf;
217 for (xug = (struct xunpgen *)((char *)xug + xug->xug_len);
218 xug->xug_len > sizeof(struct xunpgen);
219 xug = (struct xunpgen *)((char *)xug + xug->xug_len)) {
220 xunp = (struct xunpcb *)xug;
221 so = &xunp->xu_socket;
223 /* Ignore PCBs which were freed during copyout. */
224 if (xunp->xu_unp.unp_gencnt > oxug->xug_gen)
226 unixdomainpr(xunp, so);
228 if (xug != oxug && xug->xug_gen != oxug->xug_gen) {
229 if (oxug->xug_count > xug->xug_count) {
230 printf("Some %s sockets may have been deleted.\n",
232 } else if (oxug->xug_count < xug->xug_count) {
233 printf("Some %s sockets may have been created.\n",
236 printf("Some %s sockets may have been created or deleted",
245 unixdomainpr(struct xunpcb *xunp, struct xsocket *so)
248 struct sockaddr_un *sa;
249 static int first = 1;
256 sa = (struct sockaddr_un *)0;
258 if (first && !Lflag) {
259 printf("Active UNIX domain sockets\n");
261 "%-8.8s %-6.6s %-6.6s %-6.6s %8.8s %8.8s %8.8s %8.8s Addr\n",
262 "Address", "Type", "Recv-Q", "Send-Q",
263 "Inode", "Conn", "Refs", "Nextref");
267 if (Lflag && so->so_qlimit == 0)
271 snprintf(buf1, 15, "%d/%d/%d", so->so_qlen,
272 so->so_incqlen, so->so_qlimit);
273 printf("unix %-14.14s", buf1);
275 printf("%8lx %-6.6s %6u %6u %8lx %8lx %8lx %8lx",
276 (long)so->so_pcb, socktype[so->so_type], so->so_rcv.sb_cc,
277 so->so_snd.sb_cc, (long)unp->unp_vnode, (long)unp->unp_conn,
278 (long)LIST_FIRST(&unp->unp_refs),
279 (long)LIST_NEXT(unp, unp_reflink));
283 (int)(sa->sun_len - offsetof(struct sockaddr_un, sun_path)),