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authorSander Vrijders <sander.vrijders@intec.ugent.be>2016-02-25 19:14:26 +0100
committerSander Vrijders <sander.vrijders@intec.ugent.be>2016-02-25 19:14:26 +0100
commit63633c57b1e2573890fa627dd63f7c79ee5777b8 (patch)
tree003bcaee3d5e0e15a951a8a2fb5da63db2f1079d /src/lib
parent3c21e9192fc64bd8c27501e524953b564afa50e4 (diff)
downloadouroboros-63633c57b1e2573890fa627dd63f7c79ee5777b8.tar.gz
ouroboros-63633c57b1e2573890fa627dd63f7c79ee5777b8.zip
lib, irmd, tools: Support to create IPCPs
Provides the initial support to create IPCPs via a command-line tool. It extends the socket layer with a message that is sent over a socket to the irmd when the irm_create_ipcp library function is called from a program.
Diffstat (limited to 'src/lib')
-rw-r--r--src/lib/irm.c14
-rw-r--r--src/lib/sockets.c193
2 files changed, 203 insertions, 4 deletions
diff --git a/src/lib/irm.c b/src/lib/irm.c
index da229d3e..1af8ed2c 100644
--- a/src/lib/irm.c
+++ b/src/lib/irm.c
@@ -31,7 +31,8 @@ int irm_create_ipcp(rina_name_t name,
char * ipcp_type)
{
int sockfd;
- struct irm_msg_sock msg;
+ struct irm_msg msg;
+ buffer_t * buf;
if (!ipcp_type)
return -1;
@@ -41,10 +42,15 @@ int irm_create_ipcp(rina_name_t name,
return -1;
msg.code = IRM_CREATE_IPCP;
- msg.irm_msg.create_ipcp.name = name;
- msg.irm_msg.create_ipcp.ipcp_type = ipcp_type;
+ msg.msgs.create_ipcp.name = &name;
+ msg.msgs.create_ipcp.ipcp_type = ipcp_type;
+
+ buf = serialize_irm_msg(&msg);
+ if (!buf)
+ return -1;
+
+ write(sockfd, buf->data, buf->size);
- write(sockfd, &msg, sizeof(msg));
close(sockfd);
return 0;
diff --git a/src/lib/sockets.c b/src/lib/sockets.c
index 8917f55a..9985cd56 100644
--- a/src/lib/sockets.c
+++ b/src/lib/sockets.c
@@ -29,6 +29,9 @@
#include <sys/un.h>
#include <sys/stat.h>
#include <string.h>
+#include <malloc.h>
+
+#define BUFFER_SIZE 256
int client_socket_open(char * file_name)
{
@@ -92,3 +95,193 @@ int server_socket_open(char * file_name)
return sockfd;
}
+
+static int serialized_string_len(uint8_t * data)
+{
+ uint8_t * seek = data;
+
+ while (*seek != '\0')
+ seek++;
+
+ return seek - data + 1;
+}
+
+static void ser_copy_value(size_t flen,
+ void * dst,
+ void * src,
+ int * offset)
+{
+ memcpy(dst + *offset, src, flen);
+ *offset += flen;
+}
+
+static void deser_copy_value(size_t flen,
+ void * dst,
+ void * src,
+ int * offset)
+{
+ memcpy(dst, src + *offset, flen);
+ *offset += flen;
+}
+
+static void deser_copy_string(uint8_t * data,
+ char ** dst,
+ int * offset)
+{
+ size_t flen;
+
+ flen = serialized_string_len(data + *offset);
+ *dst = malloc(flen + 1);
+ deser_copy_value(flen, *dst, data, offset);
+}
+
+static void deser_copy_int(uint8_t * data,
+ int * dst,
+ int * offset)
+{
+ *dst = 0;
+ deser_copy_value(sizeof(int), dst, data, offset);
+}
+
+static void deser_copy_enum(uint8_t * data,
+ enum irm_msg_code * dst,
+ int * offset)
+{
+ *dst = 0;
+ deser_copy_value(sizeof(enum irm_msg_code), dst, data, offset);
+}
+
+buffer_t * serialize_irm_msg(struct irm_msg * msg)
+{
+ buffer_t * buf;
+ uint8_t * data;
+ int offset = 0;
+ int i;
+ char buffer[BUFFER_SIZE];
+
+ buf = malloc(sizeof(buf));
+ buf->data = malloc(BUFFER_SIZE);
+ data = buf->data;
+
+ ser_copy_value(sizeof(enum irm_msg_code),
+ data,
+ &msg->code,
+ &offset);
+
+ switch (msg->code) {
+ case IRM_CREATE_IPCP:
+ if (!msg->msgs.create_ipcp.name ||
+ !msg->msgs.create_ipcp.name->ap_name ||
+ !msg->msgs.create_ipcp.name->ae_name ||
+ !msg->msgs.create_ipcp.ipcp_type) {
+ LOG_ERR("Null pointer passed");
+ free(buf->data);
+ free(buf);
+ return NULL;
+ }
+
+ ser_copy_value(strlen(msg->msgs.create_ipcp.name->ap_name) + 1,
+ data,
+ msg->msgs.create_ipcp.name->ap_name,
+ &offset);
+
+ ser_copy_value(sizeof(int),
+ data,
+ &msg->msgs.create_ipcp.name->api_id,
+ &offset);
+
+ ser_copy_value(strlen(msg->msgs.create_ipcp.name->ae_name) + 1,
+ data,
+ msg->msgs.create_ipcp.name->ae_name,
+ &offset);
+
+ ser_copy_value(sizeof(int),
+ data,
+ &msg->msgs.create_ipcp.name->aei_id,
+ &offset);
+
+ ser_copy_value(strlen(msg->msgs.create_ipcp.ipcp_type) + 1,
+ data,
+ msg->msgs.create_ipcp.ipcp_type,
+ &offset);
+ break;
+ default:
+ LOG_ERR("Don't know that code");
+ free(buf->data);
+ free(buf);
+ return NULL;
+ }
+
+ buf->size = offset;
+
+ for (i = 0; i < buf->size; i++) {
+ if (i > 0) sprintf(buffer + strlen(buffer), ":");
+ sprintf(buffer + strlen(buffer), "%02X", data[i]);
+ }
+ LOG_DBGF("Serialized buffer to %s", buffer);
+
+ return buf;
+}
+
+struct irm_msg * deserialize_irm_msg(buffer_t * data)
+{
+ struct irm_msg * msg;
+ char buffer[BUFFER_SIZE];
+ int i;
+ int offset = 0;
+
+ if (!data || !data->data) {
+ LOG_ERR("Got a null pointer");
+ return NULL;
+ }
+
+ memset(buffer, 0, sizeof(buffer));
+ for (i = 0; i < data->size; i++) {
+ if (i > 0) sprintf(buffer + strlen(buffer), ":");
+ sprintf(buffer + strlen(buffer), "%02X", data->data[i]);
+ }
+ LOG_DBGF("Got buffer %s", buffer);
+
+ msg = malloc(sizeof(msg));
+ if (!msg) {
+ LOG_ERR("Failed to allocate memory");
+ return NULL;
+ }
+
+ deser_copy_enum(data->data,
+ &msg->code,
+ &offset);
+
+ switch (msg->code) {
+ case IRM_CREATE_IPCP:
+ msg->msgs.create_ipcp.name =
+ malloc(sizeof(msg->msgs.create_ipcp.name));
+
+ deser_copy_string(data->data,
+ &msg->msgs.create_ipcp.name->ap_name,
+ &offset);
+
+ deser_copy_int(data->data,
+ &msg->msgs.create_ipcp.name->api_id,
+ &offset);
+
+ deser_copy_string(data->data,
+ &msg->msgs.create_ipcp.name->ae_name,
+ &offset);
+
+ deser_copy_int(data->data,
+ &msg->msgs.create_ipcp.name->aei_id,
+ &offset);
+
+ deser_copy_string(data->data,
+ &msg->msgs.create_ipcp.ipcp_type,
+ &offset);
+ break;
+ default:
+ LOG_ERR("Don't know that code");
+ free(msg);
+ return NULL;
+ }
+
+ return msg;
+}