93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
|
#define _SYSTEM 1
|
||
|
|
|
||
|
|
#include <minix/type.h>
|
||
|
|
#include <minix/const.h>
|
||
|
|
#include <sys/param.h>
|
||
|
|
#include <assert.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <libexec.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <assert.h>
|
||
|
|
#include <minix/ipc.h>
|
||
|
|
#include <minix/com.h>
|
||
|
|
#include <minix/callnr.h>
|
||
|
|
#include <minix/vm.h>
|
||
|
|
#include <minix/ipc.h>
|
||
|
|
#include <minix/syslib.h>
|
||
|
|
#include <sys/mman.h>
|
||
|
|
#include <machine/elf.h>
|
||
|
|
|
||
|
|
int libexec_alloc_mmap_prealloc_junk(struct exec_info *execi, vir_bytes vaddr, size_t len)
|
||
|
|
{
|
||
|
|
if(minix_mmap_for(execi->proc_e, (void *) vaddr, len,
|
||
|
|
PROT_READ|PROT_WRITE|PROT_EXEC,
|
||
|
|
MAP_ANON|MAP_PREALLOC|MAP_UNINITIALIZED|MAP_FIXED, -1, 0) == MAP_FAILED) {
|
||
|
|
return ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
return OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
int libexec_alloc_mmap_prealloc_cleared(struct exec_info *execi, vir_bytes vaddr, size_t len)
|
||
|
|
{
|
||
|
|
if(minix_mmap_for(execi->proc_e, (void *) vaddr, len,
|
||
|
|
PROT_READ|PROT_WRITE|PROT_EXEC,
|
||
|
|
MAP_ANON|MAP_PREALLOC|MAP_FIXED, -1, 0) == MAP_FAILED) {
|
||
|
|
return ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
return OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
int libexec_alloc_mmap_ondemand(struct exec_info *execi, vir_bytes vaddr, size_t len)
|
||
|
|
{
|
||
|
|
if(minix_mmap_for(execi->proc_e, (void *) vaddr, len,
|
||
|
|
PROT_READ|PROT_WRITE|PROT_EXEC,
|
||
|
|
MAP_ANON|MAP_FIXED, -1, 0) == MAP_FAILED) {
|
||
|
|
return ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
return OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
int libexec_clearproc_vm_procctl(struct exec_info *execi)
|
||
|
|
{
|
||
|
|
return vm_procctl_clear(execi->proc_e);
|
||
|
|
}
|
||
|
|
|
||
|
|
int libexec_clear_sys_memset(struct exec_info *execi, vir_bytes vaddr, size_t len)
|
||
|
|
{
|
||
|
|
return sys_memset(execi->proc_e, 0, vaddr, len);
|
||
|
|
}
|
||
|
|
|
||
|
|
int libexec_copy_memcpy(struct exec_info *execi,
|
||
|
|
off_t off, vir_bytes vaddr, size_t len)
|
||
|
|
{
|
||
|
|
assert(off + len <= execi->hdr_len);
|
||
|
|
memcpy((char *) vaddr, (char *) execi->hdr + off, len);
|
||
|
|
return OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
int libexec_clear_memset(struct exec_info *execi, vir_bytes vaddr, size_t len)
|
||
|
|
{
|
||
|
|
memset((char *) vaddr, 0, len);
|
||
|
|
return OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
int libexec_pm_newexec(endpoint_t proc_e, struct exec_info *e)
|
||
|
|
{
|
||
|
|
int r;
|
||
|
|
message m;
|
||
|
|
|
||
|
|
memset(&m, 0, sizeof(m));
|
||
|
|
m.m_type = PM_EXEC_NEW;
|
||
|
|
m.m_lexec_pm_exec_new.endpt = proc_e;
|
||
|
|
m.m_lexec_pm_exec_new.ptr = (vir_bytes)e;
|
||
|
|
if ((r = ipc_sendrec(PM_PROC_NR, &m)) != OK) return(r);
|
||
|
|
|
||
|
|
e->allow_setuid = !!m.m_pm_lexec_exec_new.suid;
|
||
|
|
|
||
|
|
return(m.m_type);
|
||
|
|
}
|