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重写Shell+增加更多Syscall

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Leonmmcoset
2026-04-12 22:04:25 +08:00
parent 8f10d6a16c
commit 465cc40736
16 changed files with 2537 additions and 550 deletions
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176
clks/kernel/syscall.c
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@@ -1,5 +1,6 @@
#include <clks/exec.h>
#include <clks/fs.h>
#include <clks/heap.h>
#include <clks/interrupts.h>
#include <clks/kelf.h>
#include <clks/keyboard.h>
@@ -12,10 +13,12 @@
#include <clks/types.h>
#include <clks/userland.h>
#define CLKS_SYSCALL_LOG_MAX_LEN 191U
#define CLKS_SYSCALL_PATH_MAX 192U
#define CLKS_SYSCALL_NAME_MAX 96U
#define CLKS_SYSCALL_IO_MAX_LEN 512U
#define CLKS_SYSCALL_LOG_MAX_LEN 191U
#define CLKS_SYSCALL_PATH_MAX 192U
#define CLKS_SYSCALL_NAME_MAX 96U
#define CLKS_SYSCALL_TTY_MAX_LEN 512U
#define CLKS_SYSCALL_FS_IO_MAX_LEN 65536U
#define CLKS_SYSCALL_JOURNAL_MAX_LEN 256U
struct clks_syscall_frame {
u64 rax;
@@ -94,15 +97,15 @@ static u64 clks_syscall_log_write(u64 arg0, u64 arg1) {
static u64 clks_syscall_tty_write(u64 arg0, u64 arg1) {
const char *src = (const char *)arg0;
u64 len = arg1;
char buf[CLKS_SYSCALL_IO_MAX_LEN + 1U];
char buf[CLKS_SYSCALL_TTY_MAX_LEN + 1U];
u64 i;
if (src == CLKS_NULL || len == 0ULL) {
return 0ULL;
}
if (len > CLKS_SYSCALL_IO_MAX_LEN) {
len = CLKS_SYSCALL_IO_MAX_LEN;
if (len > CLKS_SYSCALL_TTY_MAX_LEN) {
len = CLKS_SYSCALL_TTY_MAX_LEN;
}
for (i = 0ULL; i < len; i++) {
@@ -197,6 +200,139 @@ static u64 clks_syscall_exec_path(u64 arg0) {
return status;
}
static u64 clks_syscall_fs_stat_type(u64 arg0) {
char path[CLKS_SYSCALL_PATH_MAX];
struct clks_fs_node_info info;
if (clks_syscall_copy_user_string(arg0, path, sizeof(path)) == CLKS_FALSE) {
return (u64)-1;
}
if (clks_fs_stat(path, &info) == CLKS_FALSE) {
return (u64)-1;
}
return (u64)info.type;
}
static u64 clks_syscall_fs_stat_size(u64 arg0) {
char path[CLKS_SYSCALL_PATH_MAX];
struct clks_fs_node_info info;
if (clks_syscall_copy_user_string(arg0, path, sizeof(path)) == CLKS_FALSE) {
return (u64)-1;
}
if (clks_fs_stat(path, &info) == CLKS_FALSE) {
return (u64)-1;
}
return info.size;
}
static u64 clks_syscall_fs_mkdir(u64 arg0) {
char path[CLKS_SYSCALL_PATH_MAX];
if (clks_syscall_copy_user_string(arg0, path, sizeof(path)) == CLKS_FALSE) {
return 0ULL;
}
return (clks_fs_mkdir(path) == CLKS_TRUE) ? 1ULL : 0ULL;
}
static u64 clks_syscall_fs_write_common(u64 arg0, u64 arg1, u64 arg2, clks_bool append_mode) {
char path[CLKS_SYSCALL_PATH_MAX];
void *heap_copy = CLKS_NULL;
const void *payload = CLKS_NULL;
clks_bool ok;
if (clks_syscall_copy_user_string(arg0, path, sizeof(path)) == CLKS_FALSE) {
return 0ULL;
}
if (arg2 > CLKS_SYSCALL_FS_IO_MAX_LEN) {
return 0ULL;
}
if (arg2 > 0ULL) {
if (arg1 == 0ULL) {
return 0ULL;
}
heap_copy = clks_kmalloc((usize)arg2);
if (heap_copy == CLKS_NULL) {
return 0ULL;
}
clks_memcpy(heap_copy, (const void *)arg1, (usize)arg2);
payload = (const void *)heap_copy;
}
if (append_mode == CLKS_TRUE) {
ok = clks_fs_append(path, payload, arg2);
} else {
ok = clks_fs_write_all(path, payload, arg2);
}
if (heap_copy != CLKS_NULL) {
clks_kfree(heap_copy);
}
return (ok == CLKS_TRUE) ? 1ULL : 0ULL;
}
static u64 clks_syscall_fs_write(u64 arg0, u64 arg1, u64 arg2) {
return clks_syscall_fs_write_common(arg0, arg1, arg2, CLKS_FALSE);
}
static u64 clks_syscall_fs_append(u64 arg0, u64 arg1, u64 arg2) {
return clks_syscall_fs_write_common(arg0, arg1, arg2, CLKS_TRUE);
}
static u64 clks_syscall_fs_remove(u64 arg0) {
char path[CLKS_SYSCALL_PATH_MAX];
if (clks_syscall_copy_user_string(arg0, path, sizeof(path)) == CLKS_FALSE) {
return 0ULL;
}
return (clks_fs_remove(path) == CLKS_TRUE) ? 1ULL : 0ULL;
}
static u64 clks_syscall_log_journal_count(void) {
return clks_log_journal_count();
}
static u64 clks_syscall_log_journal_read(u64 arg0, u64 arg1, u64 arg2) {
char line[CLKS_SYSCALL_JOURNAL_MAX_LEN];
usize line_len;
usize copy_len;
if (arg1 == 0ULL || arg2 == 0ULL) {
return 0ULL;
}
if (clks_log_journal_read(arg0, line, sizeof(line)) == CLKS_FALSE) {
return 0ULL;
}
line_len = clks_strlen(line) + 1U;
copy_len = line_len;
if (copy_len > (usize)arg2) {
copy_len = (usize)arg2;
}
if (copy_len > sizeof(line)) {
copy_len = sizeof(line);
}
clks_memcpy((void *)arg1, line, copy_len);
((char *)arg1)[copy_len - 1U] = '\0';
return 1ULL;
}
void clks_syscall_init(void) {
clks_syscall_ready = CLKS_TRUE;
clks_log(CLKS_LOG_INFO, "SYSCALL", "INT80 FRAMEWORK ONLINE");
@@ -274,6 +410,32 @@ u64 clks_syscall_dispatch(void *frame_ptr) {
return clks_syscall_tty_write_char(frame->rbx);
case CLKS_SYSCALL_KBD_GET_CHAR:
return clks_syscall_kbd_get_char();
case CLKS_SYSCALL_FS_STAT_TYPE:
return clks_syscall_fs_stat_type(frame->rbx);
case CLKS_SYSCALL_FS_STAT_SIZE:
return clks_syscall_fs_stat_size(frame->rbx);
case CLKS_SYSCALL_FS_MKDIR:
return clks_syscall_fs_mkdir(frame->rbx);
case CLKS_SYSCALL_FS_WRITE:
return clks_syscall_fs_write(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_FS_APPEND:
return clks_syscall_fs_append(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_FS_REMOVE:
return clks_syscall_fs_remove(frame->rbx);
case CLKS_SYSCALL_LOG_JOURNAL_COUNT:
return clks_syscall_log_journal_count();
case CLKS_SYSCALL_LOG_JOURNAL_READ:
return clks_syscall_log_journal_read(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_KBD_BUFFERED:
return clks_keyboard_buffered_count();
case CLKS_SYSCALL_KBD_PUSHED:
return clks_keyboard_push_count();
case CLKS_SYSCALL_KBD_POPPED:
return clks_keyboard_pop_count();
case CLKS_SYSCALL_KBD_DROPPED:
return clks_keyboard_drop_count();
case CLKS_SYSCALL_KBD_HOTKEY_SWITCHES:
return clks_keyboard_hotkey_switch_count();
default:
return (u64)-1;
}