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-rw-r--r--usr.sbin/ppp/server.c422
1 files changed, 0 insertions, 422 deletions
diff --git a/usr.sbin/ppp/server.c b/usr.sbin/ppp/server.c
deleted file mode 100644
index 864c627..0000000
--- a/usr.sbin/ppp/server.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/*-
- * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
- *
- * $FreeBSD$
- */
-
-#include <sys/param.h>
-
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <sys/un.h>
-
-#include <errno.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <termios.h>
-#include <unistd.h>
-
-#include "log.h"
-#include "descriptor.h"
-#include "server.h"
-#include "prompt.h"
-#include "ncpaddr.h"
-#include "probe.h"
-
-static int
-server_UpdateSet(struct fdescriptor *d, fd_set *r, fd_set *w, fd_set *e, int *n)
-{
- struct server *s = descriptor2server(d);
- struct prompt *p;
- int sets;
-
- sets = 0;
- if (r && s->fd >= 0) {
- if (*n < s->fd + 1)
- *n = s->fd + 1;
- FD_SET(s->fd, r);
- log_Printf(LogTIMER, "server: fdset(r) %d\n", s->fd);
- sets++;
- }
-
- for (p = log_PromptList(); p; p = p->next)
- sets += descriptor_UpdateSet(&p->desc, r, w, e, n);
-
- return sets;
-}
-
-static int
-server_IsSet(struct fdescriptor *d, const fd_set *fdset)
-{
- struct server *s = descriptor2server(d);
- struct prompt *p;
-
- if (s->fd >= 0 && FD_ISSET(s->fd, fdset))
- return 1;
-
- for (p = log_PromptList(); p; p = p->next)
- if (descriptor_IsSet(&p->desc, fdset))
- return 1;
-
- return 0;
-}
-
-static void
-server_Read(struct fdescriptor *d, struct bundle *bundle, const fd_set *fdset)
-{
- struct server *s = descriptor2server(d);
- struct sockaddr_storage ss;
- struct sockaddr *sa = (struct sockaddr *)&ss;
- struct sockaddr_in *sin = (struct sockaddr_in *)&ss;
-#ifndef NOINET6
- struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&ss;
-#endif
- int ssize = sizeof ss, wfd;
- struct prompt *p;
- struct ncpaddr addr;
-
- if (s->fd >= 0 && FD_ISSET(s->fd, fdset)) {
- wfd = accept(s->fd, sa, &ssize);
- if (wfd < 0)
- log_Printf(LogERROR, "server_Read: accept(): %s\n", strerror(errno));
- else if (sa->sa_len == 0) {
- close(wfd);
- wfd = -1;
- }
- } else
- wfd = -1;
-
- if (wfd >= 0)
- switch (sa->sa_family) {
- case AF_LOCAL:
- log_Printf(LogPHASE, "Connected to local client.\n");
- break;
-
- case AF_INET:
- ncpaddr_setsa(&addr, sa);
- if (ntohs(sin->sin_port) < 1024) {
- log_Printf(LogALERT, "Rejected client connection from %s:%u"
- "(invalid port number) !\n",
- ncpaddr_ntoa(&addr), ntohs(sin->sin_port));
- close(wfd);
- wfd = -1;
- break;
- }
- log_Printf(LogPHASE, "Connected to client from %s:%u\n",
- ncpaddr_ntoa(&addr), ntohs(sin->sin_port));
- break;
-
-#ifndef NOINET6
- case AF_INET6:
- ncpaddr_setsa(&addr, sa);
- if (ntohs(sin6->sin6_port) < 1024) {
- log_Printf(LogALERT, "Rejected client connection from %s:%u"
- "(invalid port number) !\n",
- ncpaddr_ntoa(&addr), ntohs(sin6->sin6_port));
- close(wfd);
- wfd = -1;
- break;
- }
- log_Printf(LogPHASE, "Connected to client from %s:%u\n",
- ncpaddr_ntoa(&addr), ntohs(sin6->sin6_port));
- break;
-#endif
-
- default:
- write(wfd, "Unrecognised access !\n", 22);
- close(wfd);
- wfd = -1;
- break;
- }
-
- if (wfd >= 0) {
- if ((p = prompt_Create(s, bundle, wfd)) == NULL) {
- write(wfd, "Connection refused.\n", 20);
- close(wfd);
- } else {
- switch (sa->sa_family) {
- case AF_LOCAL:
- p->src.type = "local";
- strncpy(p->src.from, s->cfg.sockname, sizeof p->src.from - 1);
- p->src.from[sizeof p->src.from - 1] = '\0';
- break;
- case AF_INET:
- p->src.type = "ip";
- snprintf(p->src.from, sizeof p->src.from, "%s:%u",
- ncpaddr_ntoa(&addr), ntohs(sin->sin_port));
- break;
-#ifndef NOINET6
- case AF_INET6:
- p->src.type = "ip6";
- snprintf(p->src.from, sizeof p->src.from, "%s:%u",
- ncpaddr_ntoa(&addr), ntohs(sin6->sin6_port));
- break;
-#endif
- }
- prompt_TtyCommandMode(p);
- prompt_Required(p);
- }
- }
-
- log_PromptListChanged = 0;
- for (p = log_PromptList(); p; p = p->next)
- if (descriptor_IsSet(&p->desc, fdset)) {
- descriptor_Read(&p->desc, bundle, fdset);
- if (log_PromptListChanged)
- break;
- }
-}
-
-static int
-server_Write(struct fdescriptor *d __unused, struct bundle *bundle __unused,
- const fd_set *fdset __unused)
-{
- /* We never want to write here ! */
- log_Printf(LogALERT, "server_Write: Internal error: Bad call !\n");
- return 0;
-}
-
-struct server server = {
- {
- SERVER_DESCRIPTOR,
- server_UpdateSet,
- server_IsSet,
- server_Read,
- server_Write
- },
- -1,
- { "", "", 0, 0 }
-};
-
-enum server_stat
-server_Reopen(struct bundle *bundle)
-{
- char name[sizeof server.cfg.sockname];
- struct stat st;
- u_short port;
- mode_t mask;
- enum server_stat ret;
-
- if (server.cfg.sockname[0] != '\0') {
- strcpy(name, server.cfg.sockname);
- mask = server.cfg.mask;
- server_Close(bundle);
- if (server.cfg.sockname[0] != '\0' && stat(server.cfg.sockname, &st) == 0)
- if (!(st.st_mode & S_IFSOCK) || unlink(server.cfg.sockname) != 0)
- return SERVER_FAILED;
- ret = server_LocalOpen(bundle, name, mask);
- } else if (server.cfg.port != 0) {
- port = server.cfg.port;
- server_Close(bundle);
- ret = server_TcpOpen(bundle, port);
- } else
- ret = SERVER_UNSET;
-
- return ret;
-}
-
-enum server_stat
-server_LocalOpen(struct bundle *bundle, const char *name, mode_t mask)
-{
- struct sockaddr_un ifsun;
- mode_t oldmask;
- int s;
-
- oldmask = (mode_t)-1; /* Silence compiler */
-
- if (server.cfg.sockname && !strcmp(server.cfg.sockname, name))
- server_Close(bundle);
-
- memset(&ifsun, '\0', sizeof ifsun);
- ifsun.sun_len = strlen(name);
- if (ifsun.sun_len > sizeof ifsun.sun_path - 1) {
- log_Printf(LogERROR, "Local: %s: Path too long\n", name);
- return SERVER_INVALID;
- }
- ifsun.sun_family = AF_LOCAL;
- strcpy(ifsun.sun_path, name);
-
- s = socket(PF_LOCAL, SOCK_STREAM, 0);
- if (s < 0) {
- log_Printf(LogERROR, "Local: socket: %s\n", strerror(errno));
- goto failed;
- }
- setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &s, sizeof s);
- if (mask != (mode_t)-1)
- oldmask = umask(mask);
- if (bind(s, (struct sockaddr *)&ifsun, sizeof ifsun) < 0) {
- if (mask != (mode_t)-1)
- umask(oldmask);
- log_Printf(LogWARN, "Local: bind: %s\n", strerror(errno));
- close(s);
- goto failed;
- }
- if (mask != (mode_t)-1)
- umask(oldmask);
- if (listen(s, 5) != 0) {
- log_Printf(LogERROR, "Local: Unable to listen to socket -"
- " BUNDLE overload?\n");
- close(s);
- unlink(name);
- goto failed;
- }
- server_Close(bundle);
- server.fd = s;
- server.cfg.port = 0;
- strncpy(server.cfg.sockname, ifsun.sun_path, sizeof server.cfg.sockname - 1);
- server.cfg.sockname[sizeof server.cfg.sockname - 1] = '\0';
- server.cfg.mask = mask;
- log_Printf(LogPHASE, "Listening at local socket %s.\n", name);
-
- return SERVER_OK;
-
-failed:
- if (server.fd == -1) {
- server.fd = -1;
- server.cfg.port = 0;
- strncpy(server.cfg.sockname, ifsun.sun_path,
- sizeof server.cfg.sockname - 1);
- server.cfg.sockname[sizeof server.cfg.sockname - 1] = '\0';
- server.cfg.mask = mask;
- }
- return SERVER_FAILED;
-}
-
-enum server_stat
-server_TcpOpen(struct bundle *bundle, u_short port)
-{
- struct sockaddr_storage ss;
- struct sockaddr_in *sin = (struct sockaddr_in *)&ss;
-#ifndef NOINET6
- struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&ss;
-#endif
- int s, sz;
-
- if (server.cfg.port == port)
- server_Close(bundle);
-
- if (port == 0)
- return SERVER_INVALID;
-
- memset(&ss, '\0', sizeof ss);
-#ifndef NOINET6
- if (probe.ipv6_available) {
- sin6->sin6_family = AF_INET6;
- sin6->sin6_port = htons(port);
- sin6->sin6_len = (u_int8_t)sizeof ss;
- sz = sizeof *sin6;
- s = socket(PF_INET6, SOCK_STREAM, 0);
- } else
-#endif
- {
- sin->sin_family = AF_INET;
- sin->sin_port = htons(port);
- sin->sin_len = (u_int8_t)sizeof ss;
- sin->sin_addr.s_addr = INADDR_ANY;
- sz = sizeof *sin;
- s = socket(PF_INET, SOCK_STREAM, 0);
- }
-
- if (s < 0) {
- log_Printf(LogERROR, "Tcp: socket: %s\n", strerror(errno));
- goto failed;
- }
-
-#ifndef NOINET6
- if (probe.ipv6_available) {
- int off = 0;
- setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&off, sizeof(off));
- }
-#endif
-
- setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &s, sizeof s);
- if (bind(s, (struct sockaddr *)&ss, sz) < 0) {
- log_Printf(LogWARN, "Tcp: bind: %s\n", strerror(errno));
- close(s);
- goto failed;
- }
- if (listen(s, 5) != 0) {
- log_Printf(LogERROR, "Tcp: Unable to listen to socket: %s\n",
- strerror(errno));
- close(s);
- goto failed;
- }
- server_Close(bundle);
- server.fd = s;
- server.cfg.port = port;
- *server.cfg.sockname = '\0';
- server.cfg.mask = 0;
- log_Printf(LogPHASE, "Listening at port %d.\n", port);
- return SERVER_OK;
-
-failed:
- if (server.fd == -1) {
- server.fd = -1;
- server.cfg.port = port;
- *server.cfg.sockname = '\0';
- server.cfg.mask = 0;
- }
- return SERVER_FAILED;
-}
-
-int
-server_Close(struct bundle *bundle __unused)
-{
- if (server.fd >= 0) {
- if (*server.cfg.sockname != '\0') {
- struct sockaddr_un un;
- int sz = sizeof un;
-
- if (getsockname(server.fd, (struct sockaddr *)&un, &sz) == 0 &&
- un.sun_family == AF_LOCAL && sz == sizeof un)
- unlink(un.sun_path);
- }
- close(server.fd);
- server.fd = -1;
- /* Drop associated prompts */
- log_DestroyPrompts(&server);
-
- return 1;
- }
-
- return 0;
-}
-
-int
-server_Clear(struct bundle *bundle)
-{
- int ret;
-
- ret = server_Close(bundle);
-
- server.fd = -1;
- server.cfg.port = 0;
- *server.cfg.sockname = '\0';
- server.cfg.mask = 0;
-
- return ret;
-}
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