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-rw-r--r--src/ipcpd/shim-udp/CMakeLists.txt40
-rw-r--r--src/ipcpd/shim-udp/main.c40
-rw-r--r--src/ipcpd/shim-udp/shim_udp_config.h.in28
3 files changed, 79 insertions, 29 deletions
diff --git a/src/ipcpd/shim-udp/CMakeLists.txt b/src/ipcpd/shim-udp/CMakeLists.txt
index c71fa00b..a50fe8bd 100644
--- a/src/ipcpd/shim-udp/CMakeLists.txt
+++ b/src/ipcpd/shim-udp/CMakeLists.txt
@@ -1,5 +1,7 @@
-get_filename_component(CURRENT_SOURCE_PARENT_DIR ${CMAKE_CURRENT_SOURCE_DIR} DIRECTORY)
-get_filename_component(CURRENT_BINARY_PARENT_DIR ${CMAKE_CURRENT_BINARY_DIR} DIRECTORY)
+get_filename_component(CURRENT_SOURCE_PARENT_DIR
+ ${CMAKE_CURRENT_SOURCE_DIR} DIRECTORY)
+get_filename_component(CURRENT_BINARY_PARENT_DIR
+ ${CMAKE_CURRENT_BINARY_DIR} DIRECTORY)
include_directories(${CMAKE_CURRENT_SOURCE_DIR})
include_directories(${CMAKE_CURRENT_BINARY_DIR})
@@ -18,33 +20,47 @@ IF(NOT CMAKE_HAVE_GETHOSTBYNAME)
IF (CMAKE_LIB_NSL_HAS_GETHOSTBYNAME)
SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -lnsl)
ELSE (CMAKE_LIB_NSL_HAS_GETHOSTBYNAME)
- CHECK_LIBRARY_EXISTS("bsd" "gethostbyname" "" CMAKE_LIB_BSD_HAS_GETHOSTBYNAME)
+ CHECK_LIBRARY_EXISTS("bsd" "gethostbyname" ""
+ CMAKE_LIB_BSD_HAS_GETHOSTBYNAME)
IF (CMAKE_LIB_BSD_HAS_GETHOSTBYNAME)
SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -lbsd)
ENDIF (CMAKE_LIB_BSD_HAS_GETHOSTBYNAME)
ENDIF (CMAKE_LIB_NSL_HAS_GETHOSTBYNAME)
ENDIF(NOT CMAKE_HAVE_GETHOSTBYNAME)
-# Find the nsupdate executable
-find_program(NSUPDATE_EXECUTABLE
- NAMES nsupdate
- DOC "The nsupdate tool that enables DDNS")
+# Enable DNS by default
+if (NOT DISABLE_DNS MATCHES True)
+ # Find the nsupdate executable
+ find_program(NSUPDATE_EXECUTABLE
+ NAMES nsupdate
+ DOC "The nsupdate tool that enables DDNS")
-if (${NSUPDATE_EXECUTABLE} STREQUAL "NSUPDATE_EXECUTABLE-NOTFOUND")
- message(FATAL_ERROR "Could not find nsupdate, which is needed for DDNS")
-else()
- message("-- Found nsupdate: ${NSUPDATE_EXECUTABLE}")
+ if (${NSUPDATE_EXECUTABLE} STREQUAL "NSUPDATE_EXECUTABLE-NOTFOUND")
+ message(FATAL_ERROR "Could not find nsupdate, which is needed for DDNS")
+ else()
+ message("-- Found nsupdate: ${NSUPDATE_EXECUTABLE}")
+ endif()
endif()
+configure_file(
+ "${CMAKE_CURRENT_SOURCE_DIR}/shim_udp_config.h.in"
+ "${CMAKE_CURRENT_BINARY_DIR}/shim_udp_config.h")
+
SET(IPCP_SHIM_UDP_TARGET ipcpd-shim-udp CACHE STRING "IPCP_SHIM_UDP_TARGET")
set(SHIM_UDP_SOURCES
# Add source files here
${CMAKE_CURRENT_SOURCE_DIR}/main.c)
-add_executable (ipcpd-shim-udp ${SHIM_UDP_SOURCES} ${IPCP_SOURCES})
+add_executable (ipcpd-shim-udp ${SHIM_UDP_SOURCES} ${IPCP_SOURCES}
+ "${CMAKE_CURRENT_BINARY_DIR}/shim_udp_config.h")
target_link_libraries (ipcpd-shim-udp LINK_PUBLIC ouroboros)
+# Enable DNS by default
+if (NOT DISABLE_DNS MATCHES True)
+ MACRO_ADD_COMPILE_FLAGS(ipcpd-shim-udp -DCONFIG_OUROBOROS_ENABLE_DNS)
+endif()
+
include(MacroAddCompileFlags)
if (CMAKE_BUILD_TYPE MATCHES Debug)
MACRO_ADD_COMPILE_FLAGS(ipcpd-shim-udp -DCONFIG_OUROBOROS_DEBUG)
diff --git a/src/ipcpd/shim-udp/main.c b/src/ipcpd/shim-udp/main.c
index e213f019..b45bee76 100644
--- a/src/ipcpd/shim-udp/main.c
+++ b/src/ipcpd/shim-udp/main.c
@@ -23,6 +23,7 @@
#include <ouroboros/config.h>
#include "ipcp.h"
#include "flow.h"
+#include "shim_udp_config.h"
#include <ouroboros/shm_du_map.h>
#include <ouroboros/shm_ap_rbuff.h>
#include <ouroboros/list.h>
@@ -31,6 +32,7 @@
#include <ouroboros/dif_config.h>
#include <ouroboros/sockets.h>
#include <ouroboros/bitmap.h>
+#include <ouroboros/dev.h>
#define OUROBOROS_PREFIX "ipcpd/shim-udp"
@@ -74,19 +76,6 @@ struct ipcp * _ipcp;
* the info
*/
-#define UNKNOWN_AP "__UNKNOWN_AP__"
-#define UNKNOWN_AE "__UNKNOWN_AE__"
-
-#define AP_MAX_FLOWS 256
-
-#ifndef DU_BUFF_HEADSPACE
- #define DU_BUFF_HEADSPACE 128
-#endif
-
-#ifndef DU_BUFF_TAILSPACE
- #define DU_BUFF_TAILSPACE 0
-#endif
-
/* the shim needs access to these internals */
struct shim_ap_data {
instance_name_t * api;
@@ -332,8 +321,11 @@ static void * ipcp_udp_listener()
}
/* echo back the packet */
- while(send(fd, buf, strlen(buf), 0) < 0)
- ;
+ if (send(fd, buf, strlen(buf), 0) < 0) {
+ LOG_ERR("Failed to echo back the packet.");
+ close(fd);
+ continue;
+ }
/* reply to IRM */
@@ -413,12 +405,16 @@ int ipcp_udp_bootstrap(struct dif_config * conf)
ipstr,
INET_ADDRSTRLEN);
- if (conf->dns_addr != 0)
+ if (conf->dns_addr != 0) {
inet_ntop(AF_INET,
&conf->dns_addr,
dnsstr,
INET_ADDRSTRLEN);
- else
+#ifndef CONFIG_OUROBOROS_ENABLE_DNS
+ LOG_WARN("DNS address ignored since shim-udp was "
+ "compiled without DNS support.");
+#endif
+ } else
strcpy(dnsstr, "not set");
shim_data(_ipcp)->ip_addr = conf->ip_addr;
@@ -480,6 +476,7 @@ int ipcp_udp_bootstrap(struct dif_config * conf)
return 0;
}
+#ifdef CONFIG_OUROBOROS_ENABLE_DNS
/* FIXME: Dependency on nsupdate to be removed in the end */
static int ddns_send(char * cmd)
{
@@ -524,15 +521,18 @@ static int ddns_send(char * cmd)
close(pipe_fd[1]);
return 0;
}
+#endif
int ipcp_udp_name_reg(char * name)
{
+#ifdef CONFIG_OUROBOROS_ENABLE_DNS
char ipstr[INET_ADDRSTRLEN];
char dnsstr[INET_ADDRSTRLEN];
/* max DNS name length + max IP length + command length */
char cmd[100];
uint32_t dns_addr;
uint32_t ip_addr;
+#endif
if (_ipcp->state != IPCP_ENROLLED) {
LOG_DBGF("Won't register with non-enrolled IPCP.");
@@ -549,6 +549,7 @@ int ipcp_udp_name_reg(char * name)
return -1;
}
+#ifdef CONFIG_OUROBOROS_ENABLE_DNS
/* register application with DNS server */
dns_addr = shim_data(_ipcp)->dns_addr;
@@ -565,6 +566,7 @@ int ipcp_udp_name_reg(char * name)
return -1;
}
}
+#endif
LOG_DBG("Registered %s.", name);
@@ -573,16 +575,19 @@ int ipcp_udp_name_reg(char * name)
int ipcp_udp_name_unreg(char * name)
{
+#ifdef CONFIG_OUROBOROS_ENABLE_DNS
char dnsstr[INET_ADDRSTRLEN];
/* max DNS name length + max IP length + max command length */
char cmd[100];
uint32_t dns_addr;
+#endif
if (strlen(name) > 24) {
LOG_ERR("DNS names cannot be longer than 24 chars.");
return -1;
}
+#ifdef CONFIG_OUROBOROS_ENABLE_DNS
/* unregister application with DNS server */
dns_addr = shim_data(_ipcp)->dns_addr;
@@ -593,6 +598,7 @@ int ipcp_udp_name_unreg(char * name)
ddns_send(cmd);
}
+#endif
ipcp_data_del_reg_entry(_ipcp->data, name);
diff --git a/src/ipcpd/shim-udp/shim_udp_config.h.in b/src/ipcpd/shim-udp/shim_udp_config.h.in
new file mode 100644
index 00000000..00b0b910
--- /dev/null
+++ b/src/ipcpd/shim-udp/shim_udp_config.h.in
@@ -0,0 +1,28 @@
+/*
+ * Ouroboros - Copyright (C) 2016
+ *
+ * Configuration information specific for the shim UDP
+ *
+ * Sander Vrijders <sander.vrijders@intec.ugent.be>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef OUROBOROS_SHIM_UDP_CONFIG
+#define OUROBOROS_SHIM_UDP_CONFIG
+
+#define NSUPDATE_EXEC "@NSUPDATE_EXECUTABLE@"
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 11:48:16 +0000