From f85e54f7982d5fefecddccbb11f5aabd478b91d6 Mon Sep 17 00:00:00 2001 From: "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(+) (limited to 'sw/z80/kernel') 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; -- cgit v1.2.1