summaryrefslogtreecommitdiffstats
path: root/kdm/backend/socket.c
diff options
context:
space:
mode:
Diffstat (limited to 'kdm/backend/socket.c')
-rw-r--r--kdm/backend/socket.c418
1 files changed, 0 insertions, 418 deletions
diff --git a/kdm/backend/socket.c b/kdm/backend/socket.c
deleted file mode 100644
index 677a3d32f..000000000
--- a/kdm/backend/socket.c
+++ /dev/null
@@ -1,418 +0,0 @@
-/*
-
-Copyright 1988, 1998 The Open Group
-Copyright 2002 Sun Microsystems, Inc. All rights reserved.
-Copyright 2002,2004 Oswald Buddenhagen <ossi@kde.org>
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of a copyright holder shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from the copyright holder.
-
-*/
-
-/*
- * xdm - display manager daemon
- * Author: Keith Packard, MIT X Consortium
- *
- * socket.c - Support for BSD sockets
- */
-
-#include "dm.h"
-
-#if defined(XDMCP) && !defined(STREAMSCONN)
-
-#include "dm_error.h"
-#include "dm_socket.h"
-
-#include <netdb.h>
-#include <arpa/inet.h>
-
-static int c_request_port;
-
-static int
-CreateListeningSocket( struct sockaddr *sock_addr, int salen )
-{
- int fd;
-#if defined(IPv6) && defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY)
- int on = 0;
-#endif
- const char *addrstring = "unknown";
-#if defined(IPv6) && defined(AF_INET6)
- char addrbuf[INET6_ADDRSTRLEN];
-#endif
-
- if (!request_port)
- return -1;
-
- if (debugLevel & DEBUG_CORE) {
-#if defined(IPv6) && defined(AF_INET6)
- void *ipaddr;
- if (sock_addr->sa_family == AF_INET6)
- ipaddr = & ((struct sockaddr_in6 *)sock_addr)->sin6_addr;
- else
- ipaddr = & ((struct sockaddr_in *)sock_addr)->sin_addr;
- addrstring =
- inet_ntop( sock_addr->sa_family, ipaddr, addrbuf, sizeof(addrbuf) );
-
-#else
- addrstring = inet_ntoa( ((struct sockaddr_in *)sock_addr)->sin_addr );
-#endif
-
- Debug( "creating socket to listen on port %d of address %s\n",
- request_port, addrstring );
- }
-
- if ((fd = socket( sock_addr->sa_family, SOCK_DGRAM, 0 )) == -1) {
- LogError( "XDMCP socket creation failed, errno %d\n", errno );
- return -1;
- }
-#if defined(IPv6) && defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY)
- setsockopt( fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on) );
-#endif
-
- if (bind( fd, sock_addr, salen ) == -1) {
- LogError( "error %d binding socket address %d\n", errno, request_port );
- close( fd );
- return -1;
- }
-
- RegisterCloseOnFork( fd );
- RegisterInput( fd );
- return fd;
-}
-
-struct socklist {
- struct socklist *next;
- struct socklist *mcastgroups;
- struct sockaddr *addr;
- int salen;
- int addrlen;
- int fd;
- int ref; /* referenced bit - see UpdateListenSockets */
-};
-
-static struct socklist *listensocks;
-
-static void
-DestroyListeningSocket( struct socklist *s )
-{
- struct socklist *g, *n;
-
- if (s->fd >= 0) {
- CloseNClearCloseOnFork( s->fd );
- UnregisterInput( s->fd );
- s->fd = -1;
- }
- if (s->addr) {
- free( s->addr );
- s->addr = NULL;
- }
- for (g = s->mcastgroups; g; g = n) {
- n = g->next;
- if (g->addr)
- free( g->addr );
- free( g );
- }
- s->mcastgroups = NULL;
-}
-
-static struct socklist*
-FindInList( struct socklist *list, ARRAY8Ptr addr )
-{
- struct socklist *s;
-
- for (s = list; s; s = s->next) {
- if (s->addrlen == addr->length) {
- char *addrdata;
-
- switch (s->addr->sa_family) {
- case AF_INET:
- addrdata = (char *)
- &(((struct sockaddr_in *)s->addr)->sin_addr.s_addr);
- break;
-#if defined(IPv6) && defined(AF_INET6)
- case AF_INET6:
- addrdata = (char *)
- &(((struct sockaddr_in6 *)s->addr)->sin6_addr.s6_addr);
- break;
-#endif
- default:
- /* Unrecognized address family */
- continue;
- }
- if (!memcmp( addrdata, addr->data, addr->length ))
- return s;
- }
- }
- return NULL;
-}
-
-static struct socklist *
-CreateSocklistEntry( ARRAY8Ptr addr )
-{
- struct socklist *s;
-
- if (!(s = Calloc( 1, sizeof(struct socklist) )))
- return NULL;
-
- if (addr->length == 4) { /* IPv4 */
- struct sockaddr_in *sin4;
- sin4 = Calloc( 1, sizeof(struct sockaddr_in) );
-#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
- sin4->sin_len = sizeof(struct sockaddr_in);
-#endif
- s->addr = (struct sockaddr *)sin4;
- s->salen = sizeof(struct sockaddr_in);
- s->addrlen = sizeof(struct in_addr);
- sin4->sin_family = AF_INET;
- sin4->sin_port = htons( (short)request_port );
- memcpy( &sin4->sin_addr, addr->data, addr->length );
- }
-#if defined(IPv6) && defined(AF_INET6)
- else if (addr->length == 16) { /* IPv6 */
- struct sockaddr_in6 *sin6;
- sin6 = Calloc( 1, sizeof(struct sockaddr_in6) );
-#ifdef SIN6_LEN
- sin6->sin6_len = sizeof(struct sockaddr_in6);
-#endif
- s->addr = (struct sockaddr *)sin6;
- s->salen = sizeof(struct sockaddr_in6);
- s->addrlen = sizeof(struct in6_addr);
- sin6->sin6_family = AF_INET6;
- sin6->sin6_port = htons( (short)request_port );
- memcpy( &sin6->sin6_addr, addr->data, addr->length );
- }
-#endif
- else {
- /* Unknown address type */
- free( s );
- s = NULL;
- }
- return s;
-}
-
-static void
-UpdateListener( ARRAY8Ptr addr, void **closure )
-{
- struct socklist *s;
-
- *closure = NULL;
-
- if (addr == NULL) {
- ARRAY8 tmpaddr;
- struct in_addr in;
-#if defined(IPv6) && defined(AF_INET6)
- struct in6_addr in6 = in6addr_any;
- tmpaddr.length = sizeof(in6);
- tmpaddr.data = (CARD8Ptr) &in6;
- UpdateListener( &tmpaddr, closure );
- if (*closure)
- return;
-#endif
- in.s_addr = htonl( INADDR_ANY );
- tmpaddr.length = sizeof(in);
- tmpaddr.data = (CARD8Ptr) &in;
- UpdateListener( &tmpaddr, closure );
- return;
- }
-
- if (c_request_port == request_port &&
- (s = FindInList( listensocks, addr )))
- {
- *closure = (void *)s;
- s->ref = 1;
- return;
- }
-
- if (!(s = CreateSocklistEntry( addr )))
- return;
-
- if ((s->fd = CreateListeningSocket( s->addr, s->salen )) < 0) {
- free( s->addr );
- free( s );
- return;
- }
- s->ref = 1;
- s->next = listensocks;
- listensocks = s;
- *closure = (void *)s;
-}
-
-#define JOIN_MCAST_GROUP 0
-#define LEAVE_MCAST_GROUP 1
-
-static void
-ChangeMcastMembership( struct socklist *s, struct socklist *g, int op )
-{
- int sockopt;
-
- switch (s->addr->sa_family)
- {
- case AF_INET:
- {
- struct ip_mreq mreq;
- memcpy( &mreq.imr_multiaddr,
- &((struct sockaddr_in *)g->addr)->sin_addr,
- sizeof(struct in_addr) );
- memcpy( &mreq.imr_interface,
- &((struct sockaddr_in *)s->addr)->sin_addr,
- sizeof(struct in_addr) );
- if (op == JOIN_MCAST_GROUP)
- sockopt = IP_ADD_MEMBERSHIP;
- else
- sockopt = IP_DROP_MEMBERSHIP;
- if (setsockopt( s->fd, IPPROTO_IP, sockopt,
- &mreq, sizeof(mreq) ) < 0) {
- LogError( "XDMCP socket multicast %s to %s failed, errno %d\n",
- (op == JOIN_MCAST_GROUP) ? "join" : "drop",
- inet_ntoa( ((struct sockaddr_in *)g->addr)->sin_addr ),
- errno );
- } else if (debugLevel & DEBUG_CORE) {
- Debug( "XDMCP socket multicast %s to %s succeeded\n",
- (op == JOIN_MCAST_GROUP) ? "join" : "drop",
- inet_ntoa( ((struct sockaddr_in *)g->addr)->sin_addr ) );
- }
- return;
- }
-#if defined(IPv6) && defined(AF_INET6)
-# ifndef IPV6_JOIN_GROUP
-# define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
-# endif
-# ifndef IPV6_LEAVE_GROUP
-# define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
-# endif
- case AF_INET6:
- {
- struct ipv6_mreq mreq6;
- memcpy( &mreq6.ipv6mr_multiaddr,
- &((struct sockaddr_in6 *)g->addr)->sin6_addr,
- sizeof(struct in6_addr) );
- mreq6.ipv6mr_interface = 0; /* TODO: fix this */
- if (op == JOIN_MCAST_GROUP)
- sockopt = IPV6_JOIN_GROUP;
- else
- sockopt = IPV6_LEAVE_GROUP;
- if (setsockopt( s->fd, IPPROTO_IPV6, sockopt,
- &mreq6, sizeof(mreq6) ) < 0)
- {
- int saveerr = errno;
- char addrbuf[INET6_ADDRSTRLEN];
-
- inet_ntop( s->addr->sa_family,
- &((struct sockaddr_in6 *)g->addr)->sin6_addr,
- addrbuf, sizeof(addrbuf) );
-
- LogError( "XDMCP socket multicast %s to %s failed, errno %d\n",
- (op == JOIN_MCAST_GROUP) ? "join" : "drop", addrbuf,
- saveerr );
- } else if (debugLevel & DEBUG_CORE) {
- char addrbuf[INET6_ADDRSTRLEN];
-
- inet_ntop( s->addr->sa_family,
- &((struct sockaddr_in6 *)g->addr)->sin6_addr,
- addrbuf, sizeof(addrbuf) );
-
- Debug( "XDMCP socket multicast %s to %s succeeded\n",
- (op == JOIN_MCAST_GROUP) ? "join" : "drop", addrbuf );
- }
- return;
- }
-#endif
- }
-}
-
-static void
-UpdateMcastGroup( ARRAY8Ptr addr, void **closure )
-{
- struct socklist *s = (struct socklist *)*closure;
- struct socklist *g;
-
- if (!s)
- return;
-
- /* Already in the group, mark & continue */
- if ((g = FindInList( s->mcastgroups, addr ))) {
- g->ref = 1;
- return;
- }
-
- /* Need to join the group */
- if (!(g = CreateSocklistEntry( addr )))
- return;
-
- ChangeMcastMembership( s, g, JOIN_MCAST_GROUP );
- free( g );
-}
-
-/* Open or close listening sockets to match the current settings read in
- from the access database. */
-void
-UpdateListenSockets( void )
-{
- struct socklist *s, *g, **ls, **lg;
- void *tmpPtr = NULL;
-
- /* Clear Ref bits - any not marked by UpdateCallback will be closed */
- for (s = listensocks; s; s = s->next) {
- s->ref = 0;
- for (g = s->mcastgroups; g; g = g->next)
- g->ref = 0;
- }
- ForEachListenAddr( UpdateListener, UpdateMcastGroup, &tmpPtr );
- c_request_port = request_port;
- for (ls = &listensocks; (s = *ls); )
- if (!s->ref) {
- DestroyListeningSocket( s );
- *ls = s->next;
- free( s );
- } else {
- ls = &s->next;
- for (lg = &s->mcastgroups; (g = *lg); )
- if (!g->ref) {
- ChangeMcastMembership( s, g, LEAVE_MCAST_GROUP );
- *lg = g->next;
- free( g );
- } else
- lg = &g->next;
- }
-}
-
-int
-AnyListenSockets( void )
-{
- return listensocks != NULL;
-}
-
-int
-ProcessListenSockets( FD_TYPE *reads )
-{
- struct socklist *s;
- int ret = 0;
-
- for (s = listensocks; s; s = s->next)
- if (FD_ISSET( s->fd, reads )) {
- ProcessRequestSocket( s->fd );
- ret = 1;
- }
- return ret;
-}
-
-#endif /* !STREAMSCONN && XDMCP */
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 12:36:59 +0000