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Add a skeleton framework for capabilities.

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Use the first capability to spawn a child process.
This commit is contained in:
Drew Galbraith 2023-05-30 23:55:42 -07:00
parent 09b8136ef9
commit 69b5cd001f
9 changed files with 97 additions and 4 deletions
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14
zion/syscall/syscall.cpp
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@ -3,7 +3,9 @@
#include <stdint.h>
#include "debug/debug.h"
#include "include/cap_types.h"
#include "include/zcall.h"
#include "include/zerrors.h"
#include "loader/elf_loader.h"
#include "scheduler/process.h"
#include "scheduler/process_manager.h"
@ -57,6 +59,18 @@ void InitSyscall() {
}
uint64_t ProcessSpawn(ZProcessSpawnReq* req) {
auto& curr_proc = gScheduler->CurrentProcess();
auto cap = curr_proc.GetCapability(req->cap_id);
if (cap.empty()) {
return ZE_NOT_FOUND;
}
if (!cap->CheckType(Capability::PROCESS)) {
return ZE_INVALID;
}
if (!cap->HasPermissions(ZC_PROC_SPAWN_CHILD)) {
return ZE_DENIED;
}
dbgln("Proc spawn: %u:%u", req->elf_base, req->elf_size);
SharedPtr<Process> proc = MakeShared<Process>();
gProcMan->InsertProcess(proc);