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/*
* Copyright (C) 2011-2012 Free Software Foundation, Inc.
*
* This file is part of GnuTLS.
*
* GnuTLS 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 3 of the License, or
* (at your option) any later version.
*
* GnuTLS 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, see <https://www.gnu.org/licenses/>.
*/
#ifndef GNUTLS_SRC_INLINE_CMDS_H
#define GNUTLS_SRC_INLINE_CMDS_H
/*
* The inline commands is a facility that can be used optionally
* when --inline-commands is set during invocation of gnutls-cli
* to send inline commands at any time while a secure connection
* between the client and server is active. This is especially
* useful when the HTTPS connection is (HTTP) persistent -
* inline commands can be issued between HTTP requests, ex: GET.
* session renegotiation and session resumption can be issued
* inline between GET requests.
*
* Following inline commands are currently supported:
* ^resume^ - perform session resumption (similar to option -r)
* ^renegotiate^ - perform session renegotiation (similar to option -e)
*
* inline-commands-prefix is an additional option that can be set
* from gnutls-cli to change the default prefix (^) of inline commands.
* This option is only relevant if inline-commands option is enabled.
* This option expects a single US-ASCII character (octets 0 - 127).
* For ex: if --inline-commands-prefix=@, the inline commands will be
* @resume@, @renegotiate@, etc...
*/
typedef enum INLINE_COMMAND { INLINE_COMMAND_NONE,
INLINE_COMMAND_RESUME,
INLINE_COMMAND_RENEGOTIATE,
INLINE_COMMAND_REKEY_LOCAL,
INLINE_COMMAND_REKEY_BOTH
} inline_command_t;
#define MAX_INLINE_COMMAND_BYTES 20
typedef struct inline_cmds {
char *current_ptr; /* points to the start of the current buffer being processed */
char *new_buffer_ptr; /* points to start or offset within the caller's buffer,
* and refers to bytes yet to be processed. */
inline_command_t cmd_found;
int lf_found;
int bytes_to_flush;
ssize_t bytes_copied;
char inline_cmd_buffer[MAX_INLINE_COMMAND_BYTES];
} inline_cmds_st;
struct inline_command_definitions {
int command;
char string[MAX_INLINE_COMMAND_BYTES];
};
/* All inline commands will contain a trailing LF */
struct inline_command_definitions inline_commands_def[] = {
{INLINE_COMMAND_RESUME, "^resume^\n"},
{INLINE_COMMAND_REKEY_LOCAL, "^rekey1^\n"},
{INLINE_COMMAND_REKEY_BOTH, "^rekey^\n"},
{INLINE_COMMAND_RENEGOTIATE, "^renegotiate^\n"},
};
#define NUM_INLINE_COMMANDS ((unsigned)(sizeof(inline_commands_def)/sizeof(inline_commands_def[0])))
#endif /* GNUTLS_SRC_INLINE_CMDS_H */
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