mirror of
https://github.com/esp8266/Arduino.git
synced 2025-04-21 10:26:06 +03:00
2f4380777e
* Update to BearSSL 0.6+ release, add AES_CCM modes Pull in latest BearSSL head (0.6 + minor additions) release and add AES_CCM modes to the encryption options. * Enable the aes_ccm initialization in client/server * Initial attempt * Working code with second stack thunking * Remove #ifdefs in .S file, not needed. * Clean up thunks and remove separate stack flag * Fix PIO assembler errors * Remove #ifdef code changes, ensure same code as PC Remove "#ifdef ESP8266;...;#else;...;#endif" brackets in BearSSL to ensure the host-tested code is the same as the ESP8266-run code. * Move to latest BearSSL w/EC progmem savings * Merge with master * Add br_thunk_* calls to do ref counting, painting Add reference counting br_thunk_add/del_ref() to replace stack handling code in the class. Add in stack painting and max usage calculation. * Add in postmortem stack dump hooks When a crash occurs while in the second stack, dump the BSSL stack and then also the stack that it was called from (either cont or sys). * Update stack dump to match decoder expectations * Move thunk to code core for linkiage The thunk code needs to be visible to the core routines, so move it to the cores/esp8266 directory. Probably need to refactor the stack setup and the bearssl portion to avoid dependency on bearssl libs in cores/esp8266 * Add 2nd stack dump utility routine * Refactor once more, update stack size, add stress Make stack_thunks generic, remove bearssl include inside of cores/esp8266. Allocate the stack on a WiFiServerSecure object creation to avoid fragmentation since we will need to allocate the stack to do any connected work, anyway. A stress test is now included which checks the total BearSSL second stack usage for a variety of TLS handshake and certificate options from badssl.org. * Update to latest to-thunks branch * Add BearSSL device test using stack stress Run a series of SSL connection and transmission tests that stress BearSSL and its stack usage to the device tests. Modify device tests to include a possible SPIFFS generation and upload when a make_spiffs.py file is present in a test directory. * Use bearssl/master branch, not /to-thunks branch Update to use the merged master branch of bearssl. Should have no code changes.
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/*
|
|
StackThunk.h - Allow use second stack for BearSSL calls
|
|
|
|
BearSSL uses a significant amount of stack space, much larger than
|
|
the default Arduino core stack. These routines handle swapping
|
|
between a secondary, user-allocated stack on the heap and the real
|
|
stack.
|
|
|
|
Copyright (c) 2017 Earle F. Philhower, III. All rights reserved.
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
Modified 8 May 2015 by Hristo Gochkov (proper post and file upload handling)
|
|
*/
|
|
|
|
#ifndef _STACKTHUNK_H
|
|
#define _STACKTHUNK_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
extern void stack_thunk_add_ref();
|
|
extern void stack_thunk_del_ref();
|
|
extern void stack_thunk_repaint();
|
|
|
|
extern uint32_t stack_thunk_get_refcnt();
|
|
extern uint32_t stack_thunk_get_stack_top();
|
|
extern uint32_t stack_thunk_get_stack_bot();
|
|
extern uint32_t stack_thunk_get_cont_sp();
|
|
extern uint32_t stack_thunk_get_max_usage();
|
|
extern void stack_thunk_dump_stack();
|
|
|
|
// Globals required for thunking operation
|
|
extern uint32_t *stack_thunk_ptr;
|
|
extern uint32_t *stack_thunk_top;
|
|
extern uint32_t *stack_thunk_save;
|
|
extern uint32_t stack_thunk_refcnt;
|
|
|
|
// Thunking macro
|
|
#define make_stack_thunk(fcnToThunk) \
|
|
__asm("\n\
|
|
.text\n\
|
|
.literal_position\n\
|
|
\n\
|
|
.text\n\
|
|
.global thunk_"#fcnToThunk"\n\
|
|
.type thunk_"#fcnToThunk", @function\n\
|
|
.align 4\n\
|
|
thunk_"#fcnToThunk":\n\
|
|
addi a1, a1, -16 /* Allocate space for saved registers on stack */\n\
|
|
s32i a0, a1, 12 /* Store A0, trounced by calls */\n\
|
|
s32i a15, a1, 8 /* Store A15 (our temporary one) */\n\
|
|
movi a15, stack_thunk_save /* Store A1(SP) in temp space */\n\
|
|
s32i a1, a15, 0\n\
|
|
movi a15, stack_thunk_top /* Load A1(SP) with thunk stack */\n\
|
|
l32i.n a1, a15, 0\n\
|
|
call0 "#fcnToThunk" /* Do the call */\n\
|
|
movi a15, stack_thunk_save /* Restore A1(SP) */\n\
|
|
l32i.n a1, a15, 0\n\
|
|
l32i.n a15, a1, 8 /* Restore the saved registers */\n\
|
|
l32i.n a0, a1, 12\n\
|
|
addi a1, a1, 16 /* Free up stack and return to caller */\n\
|
|
ret\n\
|
|
.size thunk_"#fcnToThunk", . - thunk_"#fcnToThunk"\n");
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|