GUACAMOLE-221: Add back in SSH credential argv support; fix style and comments.
This commit is contained in:
parent
ec3cdfd17b
commit
f70fdfc612
@ -36,8 +36,8 @@
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* The connection parameter that is being requested from the client.
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*
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* @return
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* A newly-allocated string containing the credentials request from the
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* client, or NULL if the credentials will be updated via the required
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* A newly-allocated string containing the credentials to be requested from
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* the client, or NULL if the credentials will be updated via the required
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* instruction.
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*/
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typedef char* guac_ssh_credential_handler(guac_client* client, char* cred_name);
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@ -363,7 +363,7 @@ static int guac_common_ssh_authenticate(guac_common_ssh_session* common_session)
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char* password = common_session->credential_handler(client, "password");
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if (password != NULL)
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user->password = password;
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guac_common_ssh_user_set_password(user, password);
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}
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@ -479,7 +479,7 @@ int guac_client_load_plugin(guac_client* client, const char* protocol) {
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}
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/**
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* Callback function which is invoked by guac_client_owner_send_required() to
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* A callback function which is invoked by guac_client_owner_send_required() to
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* send the required parameters to the specified user, who is the owner of the
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* client session.
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*
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@ -488,7 +488,7 @@ int guac_client_load_plugin(guac_client* client, const char* protocol) {
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* of the client.
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*
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* @param data
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* Pointer to a NULL-terminated array of required parameters that will be
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* A pointer to a NULL-terminated array of required parameters that will be
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* passed on to the owner to continue the connection.
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*
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* @return
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@ -670,7 +670,7 @@ static void* __webp_support_callback(guac_user* user, void* data) {
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#endif
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/**
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* Callback function which is invoked by guac_client_owner_supports_required()
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* A callback function which is invoked by guac_client_owner_supports_required()
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* to determine if the owner of a client supports the "required" instruction,
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* updating the flag to indicate support.
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*
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@ -678,7 +678,7 @@ static void* __webp_support_callback(guac_user* user, void* data) {
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* The guac_user that will be checked for "required" instruction support.
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*
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* @param data
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* Pointer to an int containing the status for support of the "required"
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* A pointer to an int containing the status for support of the "required"
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* instruction. This will be 0 if the owner does not support this
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* instruction, or 1 if the owner does support it.
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*
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@ -277,8 +277,8 @@ typedef enum guac_line_join_style {
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} guac_line_join_style;
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/**
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* Track the various protocol versions supported by guacd to help negotiate
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* features that may not be supported by various versions of the client.
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* The set of protocol versions known to guacd to help negotiate features that
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* may not be supported by various versions of the client.
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*/
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typedef enum guac_protocol_version {
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@ -289,7 +289,8 @@ typedef enum guac_protocol_version {
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/**
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* Original protocol version 1.0.0, which lacks support for negotiating
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* parameters and protocol version.
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* parameters and protocol version, and requires that parameters in the
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* client/server handshake be delivered in order.
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*/
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GUAC_PROTOCOL_VERSION_1_0_0 = 0x010000,
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@ -41,13 +41,13 @@
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#include <sys/types.h>
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/**
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* Structure mapping the enum value of a protocol version to the string
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* representation of the version.
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* A structure mapping the enum value of a Guacamole protocol version to the
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* string representation of the version.
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*/
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typedef struct guac_protocol_version_mapping {
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/**
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* The enum value representing the selected protocol version.
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* The enum value of the protocol version.
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*/
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guac_protocol_version version;
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@ -59,7 +59,7 @@ typedef struct guac_protocol_version_mapping {
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} guac_protocol_version_mapping;
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/**
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* The map of known protocol version enum to the corresponding string value.
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* The map of known protocol versions to the corresponding string value.
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*/
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guac_protocol_version_mapping guac_protocol_version_table[] = {
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{ GUAC_PROTOCOL_VERSION_1_0_0, "VERSION_1_0_0" },
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@ -155,11 +155,11 @@ int guac_rdp_argv_handler(guac_user* user, guac_stream* stream,
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guac_rdp_argv_setting setting;
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/* Allow users to update authentication details */
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if (strcmp(name, GUAC_RDP_PARAMETER_NAME_USERNAME) == 0)
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if (strcmp(name, GUAC_RDP_ARGV_USERNAME) == 0)
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setting = GUAC_RDP_ARGV_SETTING_USERNAME;
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else if (strcmp(name, GUAC_RDP_PARAMETER_NAME_PASSWORD) == 0)
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else if (strcmp(name, GUAC_RDP_ARGV_PASSWORD) == 0)
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setting = GUAC_RDP_ARGV_SETTING_PASSWORD;
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else if (strcmp(name, GUAC_RDP_PARAMETER_NAME_DOMAIN) == 0)
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else if (strcmp(name, GUAC_RDP_ARGV_DOMAIN) == 0)
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setting = GUAC_RDP_ARGV_SETTING_DOMAIN;
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/* No other connection parameters may be updated */
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@ -37,5 +37,23 @@
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*/
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guac_user_argv_handler guac_rdp_argv_handler;
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/**
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* The name of the parameter that specifies/updates the username that will be
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* sent to the RDP server during authentication.
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*/
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#define GUAC_RDP_ARGV_USERNAME "username"
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/**
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* The name of the parameter that specifies/updates the password that will be
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* sent to the RDP server during authentication.
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*/
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#define GUAC_RDP_ARGV_PASSWORD "password"
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/**
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* The name of the parameter that specifies/updates the domain name that will be
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* sent to the RDP server during authentication.
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*/
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#define GUAC_RDP_ARGV_DOMAIN "domain"
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#endif
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@ -17,6 +17,7 @@
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* under the License.
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*/
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#include "argv.h"
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#include "beep.h"
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#include "bitmap.h"
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#include "channels/audio-input/audio-buffer.h"
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@ -200,10 +201,15 @@ BOOL rdp_freerdp_pre_connect(freerdp* instance) {
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}
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/**
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* Callback invoked by FreeRDP when authentication is required but a username
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* and password has not already been given. In the case of Guacamole, this
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* function always succeeds but does not populate the username or password. The
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* username/password must be given within the connection parameters.
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* Callback invoked by FreeRDP when authentication is required but the required
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* parameters have not been provided. In the case of Guacamole clients that
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* support the "required" instruction, this function will send any of the three
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* unpopulated RDP authentication parameters back to the client so that the
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* connection owner can provide the required information. If the values have
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* been provided in the original connection parameters the user will not be
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* prompted for updated parameters. If the version of Guacamole Client in use
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* by the connection owner does not support the "required" instruction then the
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* connection will fail. This function always returns true.
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*
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* @param instance
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* The FreeRDP instance associated with the RDP session requesting
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@ -232,25 +238,33 @@ static BOOL rdp_freerdp_authenticate(freerdp* instance, char** username,
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char* params[4] = {};
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int i = 0;
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/* If the client does not support the "required" instruction, just
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exit. */
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if (!guac_client_owner_supports_required(client))
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/* If the client does not support the "required" instruction, warn and
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* quit.
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*/
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if (!guac_client_owner_supports_required(client)) {
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guac_client_log(client, GUAC_LOG_WARNING, "Client does not support the "
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"\"required\" instruction. No authentication parameters will "
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"be requested.");
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return TRUE;
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}
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/* If the username is undefined, add it to the requested parameters. */
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if (settings->username == NULL) {
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params[i] = GUAC_RDP_PARAMETER_NAME_USERNAME;
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params[i] = GUAC_RDP_ARGV_USERNAME;
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rdp_client->rdp_credential_flags |= GUAC_RDP_CRED_FLAG_USERNAME;
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i++;
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}
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/* If the password is undefined, add it to the requested parameters. */
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if (settings->password == NULL) {
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params[i] = GUAC_RDP_PARAMETER_NAME_PASSWORD;
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params[i] = GUAC_RDP_ARGV_PASSWORD;
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rdp_client->rdp_credential_flags |= GUAC_RDP_CRED_FLAG_PASSWORD;
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i++;
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}
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/* If the domain is undefined, add it to the requested parameters. */
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if (settings->domain == NULL) {
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params[i] = GUAC_RDP_PARAMETER_NAME_DOMAIN;
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params[i] = GUAC_RDP_ARGV_DOMAIN;
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rdp_client->rdp_credential_flags |= GUAC_RDP_CRED_FLAG_DOMAIN;
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i++;
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}
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@ -186,7 +186,7 @@ typedef struct guac_rdp_client {
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* pthread condition. These flags will be set when credential parameters
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* are required by the connection, and cleared when those have been
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* provided by the client. All flags are cleared at the start of the
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* connection, and then set as the client determines that further
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* connection, and then set as the RDP client determines that further
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* information is required.
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*
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*
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@ -17,6 +17,7 @@
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* under the License.
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*/
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#include "argv.h"
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#include "common/defaults.h"
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#include "common/string.h"
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#include "config.h"
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@ -42,9 +43,9 @@
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const char* GUAC_RDP_CLIENT_ARGS[] = {
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"hostname",
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"port",
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GUAC_RDP_PARAMETER_NAME_DOMAIN,
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GUAC_RDP_PARAMETER_NAME_USERNAME,
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GUAC_RDP_PARAMETER_NAME_PASSWORD,
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GUAC_RDP_ARGV_DOMAIN,
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GUAC_RDP_ARGV_USERNAME,
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GUAC_RDP_ARGV_PASSWORD,
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"width",
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"height",
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"dpi",
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@ -73,24 +73,6 @@
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*/
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#define GUAC_RDP_ORDER_SUPPORT_LENGTH 32
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/**
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* The name of the parameter that is used by Guacamole to collect the username
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* from the Guacamole client and send it to the RDP server.
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*/
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#define GUAC_RDP_PARAMETER_NAME_USERNAME "username"
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/**
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* The name of the parameter that is used by Guacamole to collect the password
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* from the Guacamole client and send it to the RDP server.
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*/
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#define GUAC_RDP_PARAMETER_NAME_PASSWORD "password"
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/**
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* The name of the parameter that is used by Guacamole to collect the domain
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* name from the Guacamole client and send it to the RDP server.
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*/
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#define GUAC_RDP_PARAMETER_NAME_DOMAIN "domain"
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/**
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* All supported combinations of security types.
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*/
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@ -18,7 +18,10 @@
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*/
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#include "config.h"
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#include "argv.h"
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#include "common-ssh/user.h"
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#include "settings.h"
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#include "ssh.h"
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#include "terminal/terminal.h"
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@ -36,9 +39,30 @@ int guac_ssh_argv_callback(guac_user* user, const char* mimetype,
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guac_client* client = user->client;
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guac_ssh_client* ssh_client = (guac_ssh_client*) client->data;
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guac_terminal* terminal = ssh_client->term;
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guac_ssh_settings* settings = ssh_client->settings;
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/* Update username */
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if (strcmp(name, GUAC_SSH_ARGV_USERNAME) == 0) {
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free(settings->username);
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settings->username = strdup(value);
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pthread_cond_signal(&ssh_client->ssh_credential_cond);
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}
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/* Update password */
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else if (strcmp(name, GUAC_SSH_ARGV_PASSWORD) == 0) {
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guac_common_ssh_user_set_password(ssh_client->user, value);
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pthread_cond_signal(&ssh_client->ssh_credential_cond);
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}
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/* Update private key passphrase */
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else if (strcmp(name, GUAC_SSH_ARGV_PASSPHRASE) == 0) {
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free(settings->key_passphrase);
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settings->key_passphrase = strdup(value);
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pthread_cond_signal(&ssh_client->ssh_credential_cond);
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}
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/* Update color scheme */
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if (strcmp(name, GUAC_SSH_ARGV_COLOR_SCHEME) == 0)
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else if (strcmp(name, GUAC_SSH_ARGV_COLOR_SCHEME) == 0)
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guac_terminal_apply_color_scheme(terminal, value);
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/* Update font name */
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@ -57,7 +57,7 @@
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#define GUAC_SSH_ARGV_PASSWORD "password"
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/**
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* The name of the parameter that specifies/updates the private ky passphrase
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* The name of the parameter that specifies/updates the private key passphrase
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* used by the connection.
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*/
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#define GUAC_SSH_ARGV_PASSPHRASE "passphrase"
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@ -53,6 +53,9 @@ int guac_client_init(guac_client* client) {
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client->free_handler = guac_ssh_client_free_handler;
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/* Register handlers for argument values that may be sent after the handshake */
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guac_argv_register(GUAC_SSH_ARGV_USERNAME, guac_ssh_argv_callback, NULL, 0);
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guac_argv_register(GUAC_SSH_ARGV_PASSWORD, guac_ssh_argv_callback, NULL, 0);
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guac_argv_register(GUAC_SSH_ARGV_PASSPHRASE, guac_ssh_argv_callback, NULL, 0);
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guac_argv_register(GUAC_SSH_ARGV_COLOR_SCHEME, guac_ssh_argv_callback, NULL, GUAC_ARGV_OPTION_ECHO);
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guac_argv_register(GUAC_SSH_ARGV_FONT_NAME, guac_ssh_argv_callback, NULL, GUAC_ARGV_OPTION_ECHO);
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guac_argv_register(GUAC_SSH_ARGV_FONT_SIZE, guac_ssh_argv_callback, NULL, GUAC_ARGV_OPTION_ECHO);
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@ -87,9 +87,13 @@ guac_ssh_credential_prompt_map ssh_credential_prompt_map[] = {
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};
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/**
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* This function generates a prompt to the specified instance of guac_client
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* for the credential specified in the cred_name parameter, which should
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* be a valid SSH connection parameter.
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* Prompts the user for the credential specified in the cred_name parameter in
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* order to continue a SSH connection. If the owner of the connection is running
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* a client that supports the "required" instruction this credential will be
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* sent to the client with that instruction and updated directly via the argv
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* handler. If the client does not support the "required" instruction the prompt
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* will be generated directly on the terminal and the value returned through
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* this function.
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*
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* @param client
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* The guac_client object associated with the current connection
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@ -97,6 +101,13 @@ guac_ssh_credential_prompt_map ssh_credential_prompt_map[] = {
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*
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* @param cred_name
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* The name of the parameter to prompt for in the client.
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*
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* @return
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* If the client does not support the "required" instruction, the value
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* provided by the user on the terminal will be returned. NULL will be
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* returned if either the client supports the "required" instruction and
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* the parameter will be updated directly, or if the parameter specified
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* is invalid.
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*/
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static char* guac_ssh_get_credential(guac_client *client, char* cred_name) {
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@ -118,7 +129,7 @@ static char* guac_ssh_get_credential(guac_client *client, char* cred_name) {
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return NULL;
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}
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/* Lock the terminal thread while prompting for the credential. */
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/* Lock the SSH client thread while prompting for the credential. */
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pthread_mutex_lock(&(ssh_client->ssh_credential_lock));
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/* Let the owner know what we require. */
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@ -152,7 +163,7 @@ static guac_common_ssh_user* guac_ssh_get_user(guac_client* client) {
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guac_common_ssh_user* user;
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/* Get username */
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while (settings->username == NULL) {
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if (settings->username == NULL) {
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char* username = guac_ssh_get_credential(client, GUAC_SSH_ARGV_USERNAME);
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if (username != NULL)
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@ -182,7 +193,7 @@ static guac_common_ssh_user* guac_ssh_get_user(guac_client* client) {
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"Re-attempting private key import (WITH passphrase)");
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/* Prompt for passphrase if missing */
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while (settings->key_passphrase == NULL) {
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if (settings->key_passphrase == NULL) {
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char* passphrase = guac_ssh_get_credential(client, GUAC_SSH_ARGV_PASSPHRASE);
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if (passphrase != NULL)
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@ -338,7 +349,7 @@ void* ssh_client_thread(void* data) {
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pthread_mutex_init(&ssh_client->term_channel_lock, NULL);
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pthread_mutex_init(&ssh_client->ssh_credential_lock, NULL);
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pthread_cond_init(&(ssh_client->ssh_credential_cond), NULL);
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pthread_cond_init(&ssh_client->ssh_credential_cond, NULL);
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/* Open channel for terminal */
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ssh_client->term_channel =
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@ -553,7 +564,7 @@ void* ssh_client_thread(void* data) {
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guac_client_stop(client);
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pthread_join(input_thread, NULL);
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pthread_cond_destroy(&(ssh_client->ssh_credential_cond));
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pthread_cond_destroy(&ssh_client->ssh_credential_cond);
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pthread_mutex_destroy(&ssh_client->term_channel_lock);
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guac_client_log(client, GUAC_LOG_INFO, "SSH connection ended.");
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@ -91,13 +91,13 @@ typedef struct guac_ssh_client {
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pthread_mutex_t term_channel_lock;
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/**
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* Lock that will be locked when retrieving required credentials from the
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* user, and unlocked when those requirements are satisfied.
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* Lock that controls access to updating credential parameters for the
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* SSH connection.
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*/
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pthread_mutex_t ssh_credential_lock;
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/**
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* Condition used when SSH client thread needs to wait for Guacamole
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* Condition used when the SSH client thread needs to wait for Guacamole
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* client to pass additional credentials before continuing the connection.
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*/
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pthread_cond_t ssh_credential_cond;
|
||||
|
@ -153,9 +153,9 @@ int guac_vnc_argv_handler(guac_user* user, guac_stream* stream, char* mimetype,
|
||||
guac_vnc_argv_setting setting;
|
||||
|
||||
/* Allow users to update authentication information */
|
||||
if (strcmp(name, GUAC_VNC_PARAMETER_NAME_USERNAME) == 0)
|
||||
if (strcmp(name, GUAC_VNC_ARGV_USERNAME) == 0)
|
||||
setting = GUAC_VNC_ARGV_SETTING_USERNAME;
|
||||
else if (strcmp(name, GUAC_VNC_PARAMETER_NAME_PASSWORD) == 0)
|
||||
else if (strcmp(name, GUAC_VNC_ARGV_PASSWORD) == 0)
|
||||
setting = GUAC_VNC_ARGV_SETTING_PASSWORD;
|
||||
|
||||
/* No other connection parameters may be updated */
|
||||
|
@ -37,5 +37,17 @@
|
||||
*/
|
||||
guac_user_argv_handler guac_vnc_argv_handler;
|
||||
|
||||
/**
|
||||
* The name of the parameter Guacamole will use to specify/update the username
|
||||
* for the VNC connection.
|
||||
*/
|
||||
#define GUAC_VNC_ARGV_USERNAME "username"
|
||||
|
||||
/**
|
||||
* The name of the parameter Guacamole will use to specify/update the password
|
||||
* for the VNC connection.
|
||||
*/
|
||||
#define GUAC_VNC_ARGV_PASSWORD "password"
|
||||
|
||||
#endif /* ARGV_H */
|
||||
|
||||
|
@ -19,6 +19,7 @@
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include "argv.h"
|
||||
#include "auth.h"
|
||||
#include "vnc.h"
|
||||
|
||||
@ -48,7 +49,7 @@ char* guac_vnc_get_password(rfbClient* client) {
|
||||
|
||||
/* Send the request for password to the owner. */
|
||||
guac_client_owner_send_required(gc,
|
||||
(const char* []) {GUAC_VNC_PARAMETER_NAME_PASSWORD, NULL});
|
||||
(const char* []) {GUAC_VNC_ARGV_PASSWORD, NULL});
|
||||
|
||||
/* Set the conditional flag. */
|
||||
vnc_client->vnc_credential_flags |= GUAC_VNC_COND_FLAG_PASSWORD;
|
||||
@ -87,14 +88,14 @@ rfbCredential* guac_vnc_get_credentials(rfbClient* client, int credentialType) {
|
||||
|
||||
/* Check if username is null or empty. */
|
||||
if (settings->username == NULL) {
|
||||
params[i] = GUAC_VNC_PARAMETER_NAME_USERNAME;
|
||||
params[i] = GUAC_VNC_ARGV_USERNAME;
|
||||
i++;
|
||||
vnc_client->vnc_credential_flags |= GUAC_VNC_COND_FLAG_USERNAME;
|
||||
}
|
||||
|
||||
/* Check if password is null or empty. */
|
||||
if (settings->password == NULL) {
|
||||
params[i] = GUAC_VNC_PARAMETER_NAME_PASSWORD;
|
||||
params[i] = GUAC_VNC_ARGV_PASSWORD;
|
||||
i++;
|
||||
vnc_client->vnc_credential_flags |= GUAC_VNC_COND_FLAG_PASSWORD;
|
||||
}
|
||||
|
@ -51,12 +51,12 @@ int guac_client_init(guac_client* client) {
|
||||
|
||||
#ifdef ENABLE_VNC_TLS_LOCKING
|
||||
/* Initialize the TLS write lock */
|
||||
pthread_mutex_init(&(vnc_client->tls_lock), NULL);
|
||||
pthread_mutex_init(&vnc_client->tls_lock, NULL);
|
||||
#endif
|
||||
|
||||
/* Initialize credential lock, cond, and flags */
|
||||
pthread_mutex_init(&(vnc_client->vnc_credential_lock), NULL);
|
||||
pthread_cond_init(&(vnc_client->vnc_credential_cond), NULL);
|
||||
pthread_mutex_init(&vnc_client->vnc_credential_lock, NULL);
|
||||
pthread_cond_init(&vnc_client->vnc_credential_cond, NULL);
|
||||
vnc_client->vnc_credential_flags = 0;
|
||||
|
||||
/* Init clipboard */
|
||||
@ -142,8 +142,8 @@ int guac_vnc_client_free_handler(guac_client* client) {
|
||||
#endif
|
||||
|
||||
/* Clean up credential mutex */
|
||||
pthread_cond_destroy(&(vnc_client->vnc_credential_cond));
|
||||
pthread_mutex_destroy(&(vnc_client->vnc_credential_lock));
|
||||
pthread_cond_destroy(&vnc_client->vnc_credential_cond);
|
||||
pthread_mutex_destroy(&vnc_client->vnc_credential_lock);
|
||||
|
||||
/* Free generic data struct */
|
||||
free(client->data);
|
||||
|
@ -19,6 +19,7 @@
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include "argv.h"
|
||||
#include "client.h"
|
||||
#include "common/defaults.h"
|
||||
#include "settings.h"
|
||||
@ -37,8 +38,8 @@ const char* GUAC_VNC_CLIENT_ARGS[] = {
|
||||
"port",
|
||||
"read-only",
|
||||
"encodings",
|
||||
GUAC_VNC_PARAMETER_NAME_USERNAME,
|
||||
GUAC_VNC_PARAMETER_NAME_PASSWORD,
|
||||
GUAC_VNC_ARGV_USERNAME,
|
||||
GUAC_VNC_ARGV_PASSWORD,
|
||||
"swap-red-blue",
|
||||
"color-depth",
|
||||
"cursor",
|
||||
|
@ -30,18 +30,6 @@
|
||||
*/
|
||||
#define GUAC_VNC_DEFAULT_RECORDING_NAME "recording"
|
||||
|
||||
/**
|
||||
* The name of the parameter Guacamole will use to collect the username from the
|
||||
* Guacamole client to send to the VNC server.
|
||||
*/
|
||||
#define GUAC_VNC_PARAMETER_NAME_USERNAME "username"
|
||||
|
||||
/**
|
||||
* The name of the parameter Guacamole will use to collect the password from the
|
||||
* Guacamole client to send to the VNC server.
|
||||
*/
|
||||
#define GUAC_VNC_PARAMETER_NAME_PASSWORD "password"
|
||||
|
||||
/**
|
||||
* VNC-specific client data.
|
||||
*/
|
||||
|
@ -46,12 +46,12 @@
|
||||
#include <pthread.h>
|
||||
|
||||
/**
|
||||
* A flag for tracking status of requesting username from client.
|
||||
* A flag for tracking the status of requesting username from client.
|
||||
*/
|
||||
#define GUAC_VNC_COND_FLAG_USERNAME 1
|
||||
|
||||
/**
|
||||
* A flag for tracking status of requesting password from client.
|
||||
* A flag for tracking the status of requesting password from client.
|
||||
*/
|
||||
#define GUAC_VNC_COND_FLAG_PASSWORD 2
|
||||
|
||||
@ -145,13 +145,13 @@ typedef struct guac_vnc_client {
|
||||
guac_iconv_write* clipboard_writer;
|
||||
|
||||
/**
|
||||
* A lock that will be locked when retrieving required credentials from
|
||||
* the client, and unlocked when credentials have been retrieved.
|
||||
* A lock that controls access to updating credentials when connecting
|
||||
* to a VNC server.
|
||||
*/
|
||||
pthread_mutex_t vnc_credential_lock;
|
||||
|
||||
/**
|
||||
* A condition to use for signaling the thread when credentials have been
|
||||
* A condition for signaling the thread when credentials have been
|
||||
* retrieved from the client.
|
||||
*/
|
||||
pthread_cond_t vnc_credential_cond;
|
||||
|
Loading…
Reference in New Issue
Block a user