From f85e54f7982d5fefecddccbb11f5aabd478b91d6 Mon Sep 17 00:00:00 2001
From: "leleraffa97@hotmail.it" <leleraffa97@hotmail.it>
Date: Mon, 19 Jun 2017 13:46:16 +0200
Subject: Authentication section Programs management
---
sw/z80/kernel/boot_loader.c | 30 ++++++++++++++++++++++++++++++
sw/z80/kernel/include/boot.h | 17 +++++++++++++++++
sw/z80/kernel/include/progman.h | 23 +++++++++++++++++++++++
sw/z80/kernel/programs.c | 10 ++++++++++
4 files changed, 80 insertions(+)
diff --git a/sw/z80/kernel/boot_loader.c b/sw/z80/kernel/boot_loader.c
index b7873ec..ddca4f9 100644
--- a/sw/z80/kernel/boot_loader.c
+++ b/sw/z80/kernel/boot_loader.c
@@ -10,4 +10,34 @@ void boot_init() {
*status = DEFAULT_EXEC_STATUS;
// TODO other stuff
+}
+
+int8_t authenticate(const char *pwd) {
+
+ const char *c_pwd = PWD_ADDR, *c_req = pwd;
+
+ for (uint8_t i = 0; i < PWD_SIZE; i++) {
+
+ if (*c_pwd != *c_req)
+ return 0;
+
+ c_pwd++;
+ c_req++;
+ }
+
+ return 1;
+}
+
+void set_pwd(const char *pwd) {
+
+ char *c_pwd = PWD_ADDR;
+ const char *c_req = pwd;
+
+ for (uint8_t i = 0; i < PWD_SIZE; i++) {
+
+ *c_pwd = *c_req;
+
+ c_pwd++;
+ c_req++;
+ }
}
\ No newline at end of file
diff --git a/sw/z80/kernel/include/boot.h b/sw/z80/kernel/include/boot.h
index d581687..5310e45 100644
--- a/sw/z80/kernel/include/boot.h
+++ b/sw/z80/kernel/include/boot.h
@@ -1,10 +1,15 @@
#ifndef BOOT_H
#define BOOT_H
+#include "types.h"
+
#define LOGIN_PC // TODO find an address in ROM, to perform jumps
#define EXEC_STATUS // TODO find an address in Kernel space
+#define PWD_ADDR // TODO find an address in ROM, password
+#define PWD_SIZE 8
+
struct exec_status {
volatile int logged_in:1; // authenticated
@@ -15,4 +20,16 @@ struct exec_status {
void boot_init();
+/*
+* It returns 1 if succeded, otherwise 0
+*/
+
+int8_t authenticate(const char *pwd);
+
+/*
+* It sets the password in the ROM space, maximum 8 characters
+*/
+
+void set_pwd(const char *pwd);
+
#endif
\ No newline at end of file
diff --git a/sw/z80/kernel/include/progman.h b/sw/z80/kernel/include/progman.h
index b37e9e9..0f56bb3 100644
--- a/sw/z80/kernel/include/progman.h
+++ b/sw/z80/kernel/include/progman.h
@@ -39,6 +39,29 @@ void progman_init();
int8_t prog_req(struct program_info *info);
+/*
+* It allocates a program in the RAM
+* To obtain the right id call prog_req() first
+* Basic informations must be allocated and referenced by a program_base struct
+*/
+
+struct program_base {
+
+ void * inst_set; // pointer to the instructions set
+ size_t inst_size; // size of the instructions set
+ void * bss_data; // pointer to the bss/data space
+ size_t data_size; // size of the bss/data space
+ size_t stack_size; // size of the stack to determine the stack limit
+};
+
+void prog_alloc(int8_t id, struct program_info *info, const struct program_base *base);
+
+/*
+* It jumps the program counter to the given one
+*/
+
+void prog_exec(int8_t id, struct program_info *info);
+
/*
* It sets a quit callback
*/
diff --git a/sw/z80/kernel/programs.c b/sw/z80/kernel/programs.c
index 31593d1..0f75887 100644
--- a/sw/z80/kernel/programs.c
+++ b/sw/z80/kernel/programs.c
@@ -35,6 +35,16 @@ int8_t prog_req(struct program_info *info) {
return prog;
}
+void prog_alloc(int8_t id, struct program_info *info, const struct program_base *base) {
+
+ // TODO, implements program allocation
+}
+
+void prog_exec(int8_t id, struct program_info *info) {
+
+ // TODO, perform a program counter jump
+}
+
void prog_0_qcb(void (*callback)(void)) {
prog_0->quit_cb = callback;
--
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