Am Freitag 05 Januar 2007 13:19 schrieb Hendrik Sattler:
> is there any reason why it is not possible to choose the address and port
> for OBEX-over-TCP?
The current InOBEX-API is useless for non-root-Users, since only root can bind
port 650 (unless you fiddle with capabilities or SELinux).
I wrote an UNTESTED(!) patch to enable address and port binding as usual. On
that way, I also changed the code to allow usage of IPv6 (with IPv4 using the
IPv4-map-to-IPV6 addresses).
It adds the new TcpOBEX_* functions to the API and deprecated the InOBEX_*
functions.
The patch is attached and comments are welcome :)
HS
Index: openobex-anoncvs/lib/inobex.c
===================================================================
--- openobex-anoncvs.orig/lib/inobex.c 2007-01-07 11:22:01.680976647 +0100
+++ openobex-anoncvs/lib/inobex.c 2007-01-07 14:17:14.233970147 +0100
@@ -43,12 +43,27 @@
#include <netinet/in.h>
#include <fcntl.h>
#include <sys/socket.h>
+#include <arpa/inet.h>
#endif /*_WIN32*/
#include "obex_main.h"
#define OBEX_PORT 650
+static
+void map_ip4to6 (struct sockaddr_in* in, struct sockaddr_in6* out)
+{
+ /* map the IPv4 address to ::FFFF:<ipv4>
+ * see RFC2373 and RFC2553 for details
+ */
+ out->sin6_family = AF_INET6;
+ out->sin6_port = in->sin_port;
+ memset(out->sin6_addr.s6_addr,0,10);
+ out->sin6_addr.s6_addr[10] = 0xFF;
+ out->sin6_addr.s6_addr[11] = 0xFF;
+ memcpy(out->sin6_addr.s6_addr+12,&in->sin_addr.s_addr,4);
+}
+
/*
* Function inobex_prepare_connect (self, service)
*
@@ -57,10 +72,24 @@
*/
void inobex_prepare_connect(obex_t *self, struct sockaddr *saddr, int addrlen)
{
+ struct sockaddr_in6 addr = {
+ .sin6_family = AF_INET6,
+ .sin6_port = htons(OBEX_PORT),
+ .sin6_addr = IN6ADDR_LOOPBACK_INIT
+ };
+ if (saddr == NULL)
+ saddr = (struct sockaddr*)(&addr);
+ else
+ switch (saddr->sa_family){
+ case AF_INET:
+ map_ip4to6((struct sockaddr_in*)saddr,&addr);
+ break;
+ case AF_INET6:
+ break;
+ default:
+ break;
+ }
memcpy(&self->trans.peer, saddr, addrlen);
- /* Override to be safe... */
- self->trans.peer.inet.sin_family = AF_INET;
- self->trans.peer.inet.sin_port = htons(OBEX_PORT);
}
/*
@@ -69,12 +98,27 @@
* Prepare for INET-listen
*
*/
-void inobex_prepare_listen(obex_t *self)
+void inobex_prepare_listen(obex_t *self, struct sockaddr *saddr, int addrlen)
{
+ struct sockaddr_in6 addr = {
+ .sin6_family = AF_INET6,
+ .sin6_port = htons(OBEX_PORT),
+ .sin6_addr = IN6ADDR_ANY_INIT
+ };
/* Bind local service */
- self->trans.self.inet.sin_family = AF_INET;
- self->trans.self.inet.sin_port = htons(OBEX_PORT);
- self->trans.self.inet.sin_addr.s_addr = INADDR_ANY;
+ if (saddr == NULL)
+ saddr = (struct sockaddr*)(&addr);
+ else
+ switch (saddr->sa_family) {
+ case AF_INET:
+ map_ip4to6((struct sockaddr_in*)saddr,&addr);
+ break;
+ case AF_INET6:
+ break;
+ default:
+ saddr = (struct sockaddr*)(&addr);
+ }
+ memcpy(&self->trans.self, saddr, addrlen);
}
/*
@@ -95,8 +139,8 @@
//printf("TCP/IP listen %d %X\n", self->trans.self.inet.sin_port,
// self->trans.self.inet.sin_addr.s_addr);
- if (bind(self->serverfd, (struct sockaddr*) &self->trans.self.inet,
- sizeof(struct sockaddr_in)))
+ if (bind(self->serverfd, (struct sockaddr*) &self->trans.self.inet6,
+ sizeof(struct sockaddr_in6)))
{
DEBUG(0, "bind() Failed\n");
return -1;
@@ -121,10 +165,11 @@
*/
int inobex_accept(obex_t *self)
{
- socklen_t addrlen = sizeof(struct sockaddr_in);
+ socklen_t addrlen = sizeof(struct sockaddr_in6);
- self->fd = accept(self->serverfd, (struct sockaddr *)
- &self->trans.peer.inet, &addrlen);
+ self->fd = accept(self->serverfd,
+ (struct sockaddr *)&self->trans.peer.inet6,
+ &addrlen);
if(self->fd < 0)
return -1;
@@ -143,7 +188,7 @@
*/
int inobex_connect_request(obex_t *self)
{
- unsigned char *addr;
+ char addr[INET6_ADDRSTRLEN];
int ret;
self->fd = obex_create_socket(self, AF_INET);
@@ -151,18 +196,22 @@
return -1;
/* Set these just in case */
- self->trans.peer.inet.sin_family = AF_INET;
- if (self->trans.peer.inet.sin_port == 0)
- self->trans.peer.inet.sin_port = htons(OBEX_PORT);
-
- addr = (unsigned char *) &self->trans.peer.inet.sin_addr.s_addr;
-
- DEBUG(2, "peer addr = %d.%d.%d.%d\n",
- addr[0], addr[1], addr[2], addr[3]);
+ if (self->trans.peer.inet6.sin6_port == 0)
+ self->trans.peer.inet6.sin6_port = htons(OBEX_PORT);
+#ifndef _WIN32
+ if (!inet_ntop(AF_INET6,&self->trans.peer.inet6.sin6_addr,
+ addr,sizeof(addr))) {
+ DEBUG(4, "Adress problem\n");
+ obex_delete_socket(self, self->fd);
+ self->fd = -1;
+ return -1;
+ }
+ DEBUG(2, "peer addr = [%s]:%u\n",addr,ntohs(self->trans.peer.inet6.sin6_port));
+#endif
- ret = connect(self->fd, (struct sockaddr*) &self->trans.peer.inet,
- sizeof(struct sockaddr_in));
+ ret = connect(self->fd, (struct sockaddr*) &self->trans.peer.inet6,
+ sizeof(struct sockaddr_in6));
if (ret < 0) {
DEBUG(4, "Connect failed\n");
obex_delete_socket(self, self->fd);
Index: openobex-anoncvs/lib/obex.c
===================================================================
--- openobex-anoncvs.orig/lib/obex.c 2007-01-07 11:18:46.164757647 +0100
+++ openobex-anoncvs/lib/obex.c 2007-01-07 13:52:02.431488397 +0100
@@ -941,47 +941,98 @@
}
/**
- * InOBEX_ServerRegister - Start listening for incoming connections
+ * TcpOBEX_ServerRegister - Start listening for incoming TCP connections
* @self: OBEX handle
+ * @addr: Address to bind to (*:650 if NULL)
+ * @addrlen: Length of address structure
*
- * An easier server function to use for TCP/IP (InOBEX) only.
+ * An easier server function to use for TCP/IP (TcpOBEX) only.
+ * It supports IPv4 (AF_INET) and IPv6 (AF_INET6).
*
* Returns -1 on error.
*/
-int InOBEX_ServerRegister(obex_t *self)
+int TcpOBEX_ServerRegister(obex_t* self, struct sockaddr *addr, int addrlen)
{
DEBUG(3, "\n");
obex_return_val_if_fail(self != NULL, -1);
- inobex_prepare_listen(self);
+ inobex_prepare_listen(self,addr,addrlen);
return obex_transport_listen(self);
}
/**
- * InOBEX_TransportConnect - Connect Inet transport
+ * TcpOBEX_TransportConnect - Connect TCP transport
+ * @self: OBEX handle
+ * @addr: Address to connect to (localhost:650 if NULL)
+ * @addrlen: Length of address structure
+ *
+ * An easier connect function to use for TCP/IP (TcpOBEX) only.
+ * It supports IPv4 (AF_INET) and IPv6 (AF_INET6).
+ *
+ * Returns -1 on error.
+ */
+int TcpOBEX_TransportConnect(obex_t *self, struct sockaddr *addr, int addrlen)
+{
+ DEBUG(4, "\n");
+
+ errno = EINVAL;
+ obex_return_val_if_fail(self != NULL, -1);
+
+ if (self->object) {
+ DEBUG(1, "We are busy.\n");
+ errno = EBUSY;
+ return -1;
+ }
+
+ inobex_prepare_connect(self, addr, addrlen);
+ return obex_transport_connect_request(self);
+}
+/**
+ * InOBEX_ServerRegister - Start listening for incoming connections
+ * @self: OBEX handle
+ *
+ * An easier server function to use for TCP/IP (InOBEX) only.
+ *
+ * This function is deprecated, use TcpOBEX_ServerRegister() instead.
+ *
+ * Returns -1 on error.
+ */
+int InOBEX_ServerRegister(obex_t *self)
+{
+ DEBUG(3, "\n");
+ return TcpOBEX_ServerRegister(self,NULL,0);
+}
+
+/**
+ * InOBEX_TransportConnect - Connect Inet transport (deprecated)
* @self: OBEX handle
+ * @saddr: Address to connect to
+ * @addrlen: Length of address
*
* An easier connect function to use for TCP/IP (InOBEX) only.
*
- * Note : I would like feedback on this API to know which input
- * parameter make most sense. Thanks...
+ * This function is deprecated, use TcpOBEX_TransportConnect() instead.
+ *
+ * Returns -1 on error.
*/
int InOBEX_TransportConnect(obex_t *self, struct sockaddr *saddr, int addrlen)
{
DEBUG(4, "\n");
+ errno = EINVAL;
obex_return_val_if_fail(self != NULL, -1);
if (self->object) {
DEBUG(1, "We are busy.\n");
- return -EBUSY;
+ errno = EBUSY;
+ return -1;
}
+ errno = EINVAL;
obex_return_val_if_fail(saddr != NULL, -1);
- inobex_prepare_connect(self, saddr, addrlen);
- return obex_transport_connect_request(self);
+ return TcpOBEX_TransportConnect(self,saddr,addrlen);
}
/**
Index: openobex-anoncvs/lib/obex_transport.h
===================================================================
--- openobex-anoncvs.orig/lib/obex_transport.h 2007-01-07 11:24:12.833173147 +0100
+++ openobex-anoncvs/lib/obex_transport.h 2007-01-07 14:29:03.274282397 +0100
@@ -32,6 +32,7 @@
#ifdef _WIN32
#include <winsock2.h>
+#include <ws2tcpip.h>
#else
#include <netinet/in.h>
#endif
@@ -63,7 +64,7 @@
#ifdef HAVE_IRDA
struct sockaddr_irda irda;
#endif /*HAVE_IRDA*/
- struct sockaddr_in inet;
+ struct sockaddr_in6 inet6;
#ifdef HAVE_BLUETOOTH
#ifdef HAVE_BLUETOOTH_LINUX
struct sockaddr_rc rfcomm;
Index: openobex-anoncvs/lib/inobex.h
===================================================================
--- openobex-anoncvs.orig/lib/inobex.h 2007-01-07 13:51:27.297292647 +0100
+++ openobex-anoncvs/lib/inobex.h 2007-01-07 13:51:30.641501647 +0100
@@ -31,7 +31,7 @@
#define INOBEX_H
void inobex_prepare_connect(obex_t *self, struct sockaddr *saddr, int addrlen);
-void inobex_prepare_listen(obex_t *self);
+void inobex_prepare_listen(obex_t *self, struct sockaddr *saddr, int addrlen);
int inobex_listen(obex_t *self);
int inobex_accept(obex_t *self);
int inobex_connect_request(obex_t *self);
Index: openobex-anoncvs/include/obex.h
===================================================================
--- openobex-anoncvs.orig/include/obex.h 2007-01-07 15:47:10.875239147 +0100
+++ openobex-anoncvs/include/obex.h 2007-01-07 15:47:41.305140897 +0100
@@ -116,7 +116,13 @@
char* OBEX_GetResponseMessage(obex_t *self, int rsp);
/*
- * InOBEX API (TCP/IP)
+ * TcpOBEX API (IPv4/IPv6)
+ */
+ int TcpOBEX_ServerRegister(obex_t* self, struct sockaddr *addr, int addrlen);
+ int TcpOBEX_TransportConnect(obex_t *self, struct sockaddr *addr, int addrlen);
+
+/*
+ * InOBEX API (deprecated)
*/
int InOBEX_ServerRegister(obex_t *self);
int InOBEX_TransportConnect(obex_t *self, struct sockaddr *saddr, int addrlen);
-------------------------------------------------------------------------
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