graphene/Pal/src/host/Linux-SGX/enclave_ecalls.c

/* -*- mode:c; c-file-style:"k&r"; c-basic-offset: 4; tab-width:4; indent-tabs-mode:nil; mode:auto-fill; fill-column:78; -*- */
/* vim: set ts=4 sw=4 et tw=78 fo=cqt wm=0: */

#include "pal_linux.h"
#include "pal_security.h"
#include <api.h>

#include "ecall_types.h"

#define SGX_CAST(type, item) ((type) (item))

extern void * enclave_base, * enclave_top;

void pal_linux_main (int argc, const char ** argv, const char ** envp,
                     struct pal_sec * sec_info);

int enclave_ecall_pal_main (void * pms)
{
    ms_ecall_pal_main_t * ms = SGX_CAST(ms_ecall_pal_main_t *, pms);

    if (!pms) return -PAL_ERROR_INVAL;

    enclave_base = ms->ms_enclave_base;
    enclave_top = ms->ms_enclave_base + ms->ms_enclave_size;

    pal_linux_main(ms->ms_argc, ms->ms_argv,
                   ms->ms_envp,
                   ms->ms_sec_info);

    ocall_exit();
    return 0;
}

int enclave_ecall_thread_start (void * pms)
{
    ms_ecall_thread_start_t * ms = SGX_CAST(ms_ecall_thread_start_t *, pms);

    if (!pms) return -PAL_ERROR_INVAL;

    if (ms->ms_child_tid)
        *ms->ms_child_tid = ms->ms_tid;

    ms->ms_func(ms->ms_arg);
    ocall_exit();
    return 0;
}

void * ecall_table[ECALL_NR] = {
        [ECALL_PAL_MAIN]        = (void *) enclave_ecall_pal_main,
        [ECALL_THREAD_START]    = (void *) enclave_ecall_thread_start,
    };