Implement TLS over HTTP

Issue-ID: CERT-10
Change-Id: I25421331f249ea0a33fe9280534df8e66d08463f
Signed-off-by: Gokul Singaraju <goksing@gmail.com>

4 files changed, 213 insertions, 0 deletions

diff --git a/vnfs/VES5.0/evel/evel-library/code/evel_library/evel.c b/vnfs/VES5.0/evel/evel-library/code/evel_library/evel.c
index 246ed5de..c6ead7ad 100644
--- a/vnfs/VES5.0/evel/evel-library/code/evel_library/evel.c
+++ b/vnfs/VES5.0/evel/evel-library/code/evel_library/evel.c
@@ -67,8 +67,15 @@ char *functional_role = NULL;
  * @param   path    The optional path (may be NULL).
  * @param   topic   The optional topic part of the URL (may be NULL).
  * @param   secure  Whether to use HTTPS (0=HTTP, 1=HTTPS)
+ * @param   cert_file_path     Path to client certificate file
+ * @param   key_file_path      Path to client key file
+ * @param   ca_info            Path to CA cert file
+ * @param   ca_file_path       Path to CA cert files
+ * @param   verify_peer        SSL verification of peer 0 or 1
+ * @param   verify_host        SSL verification of host 0 or 1
  * @param   username  Username for Basic Authentication of requests.
  * @param   password  Password for Basic Authentication of requests.
+ * @param   source_ip The ip of node we represent (NULL for default ip).
  * @param   source_type The kind of node we represent.
  * @param   role    The role this node undertakes.
  * @param   verbosity  0 for normal operation, positive values for chattier
@@ -83,8 +90,15 @@ EVEL_ERR_CODES evel_initialize(const char * const fqdn,
                                const char * const path,
                                const char * const topic,
                                int secure,
+                               const char * const cert_file_path,
+                               const char * const key_file_path,
+                               const char * const ca_info,
+                               const char * const ca_file_path,
+                               long verify_peer,
+                               long verify_host,
                                const char * const username,
                                const char * const password,
+                               const char * const source_ip,
                                EVEL_SOURCE_TYPES source_type,
                                const char * const role,
                                int verbosity
@@ -134,6 +148,42 @@ EVEL_ERR_CODES evel_initialize(const char * const fqdn,
   }
 
   EVEL_INFO("API transport is: %s", secure ? "HTTPS" : "HTTP");
+  if( secure ) {
+    assert( verify_peer >= 0 );
+    assert( verify_host >= 0 );
+    if (cert_file_path != NULL)
+    {
+      EVEL_INFO("Client cert is: %s", cert_file_path);
+    }
+    else
+    {
+      EVEL_INFO("No Client cert");
+    }
+    if (key_file_path != NULL)
+    {
+      EVEL_INFO("Key file is: %s", key_file_path);
+    }
+    else
+    {
+      EVEL_INFO("No Key file");
+    }
+    if (ca_file_path != NULL)
+    {
+      EVEL_INFO("Client CA certs path is: %s", ca_file_path);
+    }
+    else
+    {
+      EVEL_INFO("No CA certs path");
+    }
+    if (ca_info != NULL)
+    {
+      EVEL_INFO("Client CA cert file is: %s", ca_info);
+    }
+    else
+    {
+      EVEL_INFO("No CA cert file");
+    }
+  }
   EVEL_INFO("Event Source Type is: %d", source_type);
   EVEL_INFO("Functional Role is: %s", role);
   EVEL_INFO("Log verbosity is: %d", verbosity);
@@ -200,6 +250,14 @@ EVEL_ERR_CODES evel_initialize(const char * const fqdn,
   /***************************************************************************/
   rc = event_handler_initialize(event_api_url,
                                 throt_api_url,
+                                source_ip,
+                                secure,
+                                cert_file_path,
+                                key_file_path,
+                                ca_info,
+                                ca_file_path,
+                                verify_peer,
+                                verify_host,
                                 username,
                                 password,
                                 verbosity);
diff --git a/vnfs/VES5.0/evel/evel-library/code/evel_library/evel.h b/vnfs/VES5.0/evel/evel-library/code/evel_library/evel.h
index 6b7a8720..1c0bea74 100644
--- a/vnfs/VES5.0/evel/evel-library/code/evel_library/evel.h
+++ b/vnfs/VES5.0/evel/evel-library/code/evel_library/evel.h
@@ -1401,8 +1401,15 @@ typedef struct copyright {
  * @param   path    The optional path (may be NULL).
  * @param   topic   The optional topic part of the URL (may be NULL).
  * @param   secure  Whether to use HTTPS (0=HTTP, 1=HTTPS).
+ * @param   cert_file_path     Path to client certificate file
+ * @param   key_file_path      Path to client key file
+ * @param   ca_info            Path to CA info
+ * @param   ca_file_path       Path to CA file
+ * @param   verify_peer        SSL verification of peer 0 or 1
+ * @param   verify_host        SSL verification of host 0 or 1
  * @param   username  Username for Basic Authentication of requests.
  * @param   password  Password for Basic Authentication of requests.
+ * @param   source_ip The ip of node we represent.(NULL for default ip)
  * @param   source_type The kind of node we represent.
  * @param   role    The role this node undertakes.
  * @param   verbosity  0 for normal operation, positive values for chattier
@@ -1417,8 +1424,15 @@ EVEL_ERR_CODES evel_initialize(const char * const fqdn,
                                const char * const path,
                                const char * const topic,
                                int secure,
+                               const char * const cert_file_path,
+                               const char * const key_file_path,
+                               const char * const ca_info,
+                               const char * const ca_file_path,
+                               long verify_peer,
+                               long verify_host,
                                const char * const username,
                                const char * const password,
+                               const char * const source_ip,
                                EVEL_SOURCE_TYPES source_type,
                                const char * const role,
                                int verbosity
diff --git a/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_event_mgr.c b/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_event_mgr.c
index 187a7090..5c6ca4b3 100644
--- a/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_event_mgr.c
+++ b/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_event_mgr.c
@@ -114,6 +114,14 @@ static char * evel_batch_api_url;
  *                      to be.
  * @param[in] throt_api_url
  *                      The URL where the Throttling API is expected to be.
+ * @param[in] source_ip  Source IP of VES Agent
+ * @param[in] secure     Whether Using http or https
+ * @param[in] cert_file_path  Path to Client Certificate file
+ * @param[in] key_file_path   Path to Client key file
+ * @param[in] ca_info         Path to CA info file
+ * @param[in] ca_file_path    Path to CA file 
+ * @param[in] verify_peer     Using peer verification or not 0 or 1
+ * @param[in] verify_host     Using host verification or not 0 or 1
  * @param[in] username  The username for the Basic Authentication of requests.
  * @param[in] password  The password for the Basic Authentication of requests.
  * @param     verbosity 0 for normal operation, positive values for chattier
@@ -121,6 +129,14 @@ static char * evel_batch_api_url;
  *****************************************************************************/
 EVEL_ERR_CODES event_handler_initialize(const char * const event_api_url,
                                         const char * const throt_api_url,
+                                        const char * const source_ip,
+                                        int secure,
+                                        const char * const cert_file_path,
+                                        const char * const key_file_path,
+                                        const char * const ca_info,
+                                        const char * const ca_file_path,
+                                        long verify_peer,
+                                        long verify_host,
                                         const char * const username,
                                         const char * const password,
                                         int verbosity)
@@ -128,6 +144,7 @@ EVEL_ERR_CODES event_handler_initialize(const char * const event_api_url,
   int rc = EVEL_SUCCESS;
   CURLcode curl_rc = CURLE_OK;
   char batch_api_url[EVEL_MAX_URL_LEN + 1] = {0};
+  char local_address[64];
 
   EVEL_ENTER();
 
@@ -241,6 +258,114 @@ EVEL_ERR_CODES event_handler_initialize(const char * const event_api_url,
   }
 
   /***************************************************************************/
+  /* configure local ip address if provided */
+  /* Default ip if NULL */
+  /***************************************************************************/
+  if( source_ip != NULL )
+  {
+    snprintf(local_address,sizeof(local_address),source_ip);
+    if( local_address[0] != '\0' )
+    {
+      curl_rc = curl_easy_setopt(curl_handle,
+                             CURLOPT_INTERFACE,
+                             local_address);
+      if (curl_rc != CURLE_OK)
+      {
+        rc = EVEL_CURL_LIBRARY_FAIL;
+        log_error_state("Failed to initialize libCURL with the local address. "
+                    "Error code=%d (%s)", curl_rc, curl_err_string);
+        goto exit_label;
+      }
+    }
+  }
+
+  /***************************************************************************/
+  /* configure SSL options for HTTPS transfers */
+  /***************************************************************************/
+  if( secure )
+  {
+    if( cert_file_path != NULL )
+    {
+      curl_rc = curl_easy_setopt(curl_handle,
+                             CURLOPT_SSLCERT,
+                             cert_file_path);
+      if (curl_rc != CURLE_OK)
+      {
+        rc = EVEL_CURL_LIBRARY_FAIL;
+        log_error_state("Failed to initialize libCURL with the client cert. "
+                    "Error code=%d (%s)", curl_rc, curl_err_string);
+        goto exit_label;
+      }
+    }
+
+    if( key_file_path != NULL )
+    {
+      curl_rc = curl_easy_setopt(curl_handle,
+                             CURLOPT_SSLKEY,
+                             key_file_path);
+      if (curl_rc != CURLE_OK)
+      {
+        rc = EVEL_CURL_LIBRARY_FAIL;
+        log_error_state("Failed to initialize libCURL with the client key. "
+                    "Error code=%d (%s)", curl_rc, curl_err_string);
+        goto exit_label;
+      }
+    }
+
+    if( ca_info != NULL )
+    {
+      curl_rc = curl_easy_setopt(curl_handle,
+                             CURLOPT_CAINFO,
+                             ca_info);
+      if (curl_rc != CURLE_OK)
+      {
+        rc = EVEL_CURL_LIBRARY_FAIL;
+        log_error_state("Failed to initialize libCURL with the CA cert file. "
+                    "Error code=%d (%s)", curl_rc, curl_err_string);
+        goto exit_label;
+      }
+    }
+
+    if( ca_file_path != NULL )
+    {
+      curl_rc = curl_easy_setopt(curl_handle,
+                             CURLOPT_CAPATH,
+                             ca_file_path);
+      if (curl_rc != CURLE_OK)
+      {
+        rc = EVEL_CURL_LIBRARY_FAIL;
+        log_error_state("Failed to initialize libCURL with the CA cert path. "
+                    "Error code=%d (%s)", curl_rc, curl_err_string);
+        goto exit_label;
+      }
+    }
+
+      curl_rc = curl_easy_setopt(curl_handle,
+                             CURLOPT_SSL_VERIFYPEER,
+                             verify_peer);
+      if (curl_rc != CURLE_OK)
+      {
+        rc = EVEL_CURL_LIBRARY_FAIL;
+        log_error_state("Failed to initialize libCURL with SSL Server verification. "
+                    "Error code=%d (%s)", curl_rc, curl_err_string);
+        goto exit_label;
+      }
+      curl_rc = curl_easy_setopt(curl_handle,
+                             CURLOPT_SSL_VERIFYHOST,
+                             verify_host);
+      if (curl_rc != CURLE_OK)
+      {
+        rc = EVEL_CURL_LIBRARY_FAIL;
+        log_error_state("Failed to initialize libCURL with Client host verification. "
+                    "Error code=%d (%s)", curl_rc, curl_err_string);
+        goto exit_label;
+      }
+
+  }
+
+
+
+  /***************************************************************************/
   /* some servers don't like requests that are made without a user-agent     */
   /* field, so we provide one.                                               */
   /***************************************************************************/
diff --git a/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_internal.h b/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_internal.h
index 46f71af1..dd4b4b7c 100644
--- a/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_internal.h
+++ b/vnfs/VES5.0/evel/evel-library/code/evel_library/evel_internal.h
@@ -174,6 +174,14 @@ typedef struct evel_throttle_spec {
  *                      to be.
  * @param[in] throt_api_url
  *                      The URL where the Throttling API is expected to be.
+ * @param[in] source_ip  Source IP of VES Agent
+ * @param[in] secure     Whether Using http or https
+ * @param[in] cert_file_path  Path to Client Certificate file
+ * @param[in] key_file_path   Path to Client key file
+ * @param[in] ca_info         Path to CA info file
+ * @param[in] ca_file_path    Path to CA file 
+ * @param[in] verify_peer     Using peer verification or not
+ * @param[in] verify_host     Using host verification or not
  * @param[in] username  The username for the Basic Authentication of requests.
  * @param[in] password  The password for the Basic Authentication of requests.
  * @param     verbosity 0 for normal operation, positive values for chattier
@@ -181,6 +189,14 @@ typedef struct evel_throttle_spec {
  *****************************************************************************/
 EVEL_ERR_CODES event_handler_initialize(const char * const event_api_url,
                                         const char * const throt_api_url,
+                                        const char * const source_ip,
+                                        int secure,
+                                        const char * const cert_file_path,
+                                        const char * const key_file_path,
+                                        const char * const ca_info,
+                                        const char * const ca_file_path,
+                                        long verify_peer,
+                                        long verify_host,
                                         const char * const username,
                                         const char * const password,
                                         int verbosity);