summaryrefslogtreecommitdiff
path: root/sys/compat/svr4/svr4_socket.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/compat/svr4/svr4_socket.c')
-rw-r--r--sys/compat/svr4/svr4_socket.c259
1 files changed, 0 insertions, 259 deletions
diff --git a/sys/compat/svr4/svr4_socket.c b/sys/compat/svr4/svr4_socket.c
deleted file mode 100644
index d7690e83bd2c6..0000000000000
--- a/sys/compat/svr4/svr4_socket.c
+++ /dev/null
@@ -1,259 +0,0 @@
-/*-
- * Copyright (c) 1998 Mark Newton
- * Copyright (c) 1996 Christos Zoulas.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by Christos Zoulas.
- * 4. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * In SVR4 unix domain sockets are referenced sometimes
- * (in putmsg(2) for example) as a [device, inode] pair instead of a pathname.
- * Since there is no iname() routine in the kernel, and we need access to
- * a mapping from inode to pathname, we keep our own table. This is a simple
- * linked list that contains the pathname, the [device, inode] pair, the
- * file corresponding to that socket and the process. When the
- * socket gets closed we remove the item from the list. The list gets loaded
- * every time a stat(2) call finds a socket.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/queue.h>
-#include <sys/eventhandler.h>
-#include <sys/file.h>
-#include <sys/kernel.h>
-#include <sys/lock.h>
-#include <sys/mutex.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-#include <sys/sysproto.h>
-#include <sys/un.h>
-#include <sys/stat.h>
-#include <sys/proc.h>
-#include <sys/malloc.h>
-
-#include <compat/svr4/svr4.h>
-#include <compat/svr4/svr4_types.h>
-#include <compat/svr4/svr4_util.h>
-#include <compat/svr4/svr4_socket.h>
-#include <compat/svr4/svr4_signal.h>
-#include <compat/svr4/svr4_sockmod.h>
-#include <compat/svr4/svr4_proto.h>
-#include <compat/svr4/svr4_stropts.h>
-
-struct svr4_sockcache_entry {
- struct proc *p; /* Process for the socket */
- void *cookie; /* Internal cookie used for matching */
- struct sockaddr_un sock;/* Pathname for the socket */
- dev_t dev; /* Device where the socket lives on */
- ino_t ino; /* Inode where the socket lives on */
- TAILQ_ENTRY(svr4_sockcache_entry) entries;
-};
-
-static TAILQ_HEAD(, svr4_sockcache_entry) svr4_head;
-static struct mtx svr4_sockcache_lock;
-static eventhandler_tag svr4_sockcache_exit_tag, svr4_sockcache_exec_tag;
-
-static void svr4_purge_sockcache(void *arg, struct proc *p);
-
-int
-svr4_find_socket(td, fp, dev, ino, saun)
- struct thread *td;
- struct file *fp;
- dev_t dev;
- ino_t ino;
- struct sockaddr_un *saun;
-{
- struct svr4_sockcache_entry *e;
- void *cookie = ((struct socket *)fp->f_data)->so_emuldata;
-
- DPRINTF(("svr4_find_socket: [%p,%ju,%ju]: ", td, (uintmax_t)dev,
- (uintmax_t)ino));
- mtx_lock(&svr4_sockcache_lock);
- TAILQ_FOREACH(e, &svr4_head, entries)
- if (e->p == td->td_proc && e->dev == dev && e->ino == ino) {
-#ifdef DIAGNOSTIC
- if (e->cookie != NULL && e->cookie != cookie)
- panic("svr4 socket cookie mismatch");
-#endif
- e->cookie = cookie;
- DPRINTF(("%s\n", e->sock.sun_path));
- *saun = e->sock;
- mtx_unlock(&svr4_sockcache_lock);
- return (0);
- }
-
- mtx_unlock(&svr4_sockcache_lock);
- DPRINTF(("not found\n"));
- return (ENOENT);
-}
-
-int
-svr4_add_socket(td, path, st)
- struct thread *td;
- const char *path;
- struct stat *st;
-{
- struct svr4_sockcache_entry *e;
- size_t len;
- int error;
-
- e = malloc(sizeof(*e), M_TEMP, M_WAITOK);
- e->cookie = NULL;
- e->dev = st->st_dev;
- e->ino = st->st_ino;
- e->p = td->td_proc;
-
- if ((error = copyinstr(path, e->sock.sun_path,
- sizeof(e->sock.sun_path), &len)) != 0) {
- DPRINTF(("svr4_add_socket: copyinstr failed %d\n", error));
- free(e, M_TEMP);
- return error;
- }
-
- e->sock.sun_family = AF_LOCAL;
- e->sock.sun_len = len;
-
- mtx_lock(&svr4_sockcache_lock);
- TAILQ_INSERT_HEAD(&svr4_head, e, entries);
- mtx_unlock(&svr4_sockcache_lock);
- DPRINTF(("svr4_add_socket: %s [%p,%ju,%ju]\n", e->sock.sun_path,
- td->td_proc, (uintmax_t)e->dev, (uintmax_t)e->ino));
- return 0;
-}
-
-void
-svr4_delete_socket(p, fp)
- struct proc *p;
- struct file *fp;
-{
- struct svr4_sockcache_entry *e;
- void *cookie = ((struct socket *)fp->f_data)->so_emuldata;
-
- mtx_lock(&svr4_sockcache_lock);
- TAILQ_FOREACH(e, &svr4_head, entries)
- if (e->p == p && e->cookie == cookie) {
- TAILQ_REMOVE(&svr4_head, e, entries);
- mtx_unlock(&svr4_sockcache_lock);
- DPRINTF(("svr4_delete_socket: %s [%p,%ju,%ju]\n",
- e->sock.sun_path, p, (uintmax_t)e->dev,
- (uintmax_t)e->ino));
- free(e, M_TEMP);
- return;
- }
- mtx_unlock(&svr4_sockcache_lock);
-}
-
-struct svr4_strm *
-svr4_stream_get(fp)
- struct file *fp;
-{
- struct socket *so;
-
- if (fp == NULL || fp->f_type != DTYPE_SOCKET)
- return NULL;
-
- so = fp->f_data;
- return so->so_emuldata;
-}
-
-void
-svr4_purge_sockcache(arg, p)
- void *arg;
- struct proc *p;
-{
- struct svr4_sockcache_entry *e, *ne;
-
- mtx_lock(&svr4_sockcache_lock);
- TAILQ_FOREACH_SAFE(e, &svr4_head, entries, ne) {
- if (e->p == p) {
- TAILQ_REMOVE(&svr4_head, e, entries);
- DPRINTF(("svr4_purge_sockcache: %s [%p,%ju,%ju]\n",
- e->sock.sun_path, p, (uintmax_t)e->dev,
- (uintmax_t)e->ino));
- free(e, M_TEMP);
- }
- }
- mtx_unlock(&svr4_sockcache_lock);
-}
-
-void
-svr4_sockcache_init(void)
-{
-
- TAILQ_INIT(&svr4_head);
- mtx_init(&svr4_sockcache_lock, "svr4 socket cache", NULL, MTX_DEF);
- svr4_sockcache_exit_tag = EVENTHANDLER_REGISTER(process_exit,
- svr4_purge_sockcache, NULL, EVENTHANDLER_PRI_ANY);
- svr4_sockcache_exec_tag = EVENTHANDLER_REGISTER(process_exec,
- svr4_purge_sockcache, NULL, EVENTHANDLER_PRI_ANY);
-}
-
-void
-svr4_sockcache_destroy(void)
-{
-
- KASSERT(TAILQ_EMPTY(&svr4_head),
- ("%s: sockcache entries still around", __func__));
- EVENTHANDLER_DEREGISTER(process_exec, svr4_sockcache_exec_tag);
- EVENTHANDLER_DEREGISTER(process_exit, svr4_sockcache_exit_tag);
- mtx_destroy(&svr4_sockcache_lock);
-}
-
-int
-svr4_sys_socket(td, uap)
- struct thread *td;
- struct svr4_sys_socket_args *uap;
-{
- switch (uap->type) {
- case SVR4_SOCK_DGRAM:
- uap->type = SOCK_DGRAM;
- break;
-
- case SVR4_SOCK_STREAM:
- uap->type = SOCK_STREAM;
- break;
-
- case SVR4_SOCK_RAW:
- uap->type = SOCK_RAW;
- break;
-
- case SVR4_SOCK_RDM:
- uap->type = SOCK_RDM;
- break;
-
- case SVR4_SOCK_SEQPACKET:
- uap->type = SOCK_SEQPACKET;
- break;
- default:
- return EINVAL;
- }
- return sys_socket(td, (struct socket_args *)uap);
-}