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Message type for PM_EXEC_NEW

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Change-Id: Idff5dc394d8daf4cb0c40d65cfdf2d54c2f9acaa
This commit is contained in:
Lionel Sambuc 2014-05-13 12:07:25 +02:00
parent a297e52a32
commit aeedd5c718
4 changed files with 27 additions and 14 deletions
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5
include/minix/callnr.h
View file

@ -122,11 +122,6 @@
/* Field names for the reboot(2) call. */
#define PM_REBOOT_HOW m1_i1 /* int */
/* Field names for the PM_EXEC_NEW call. */
#define PM_EXEC_NEW_ENDPT m1_i1 /* endpoint_t */
#define PM_EXEC_NEW_PTR m1_p1 /* struct exec_info * */
#define PM_EXEC_NEW_SUID m1_i2 /* int */
/* Field names for the PM_EXEC_RESTART call. */
#define PM_EXEC_RESTART_ENDPT m1_i1 /* endpoint_t */
#define PM_EXEC_RESTART_RESULT m1_i2 /* int */

19
include/minix/ipc.h
View file

@ -451,6 +451,21 @@ typedef struct {
} mess_lc_vfs_umount;
_ASSERT_MSG_SIZE(mess_lc_vfs_umount);
typedef struct {
endpoint_t endpt;
vir_bytes ptr; /* struct exec_info * */
uint8_t padding[48];
} mess_lexec_pm_exec_new;
_ASSERT_MSG_SIZE(mess_lexec_pm_exec_new);
typedef struct {
int suid;
uint8_t padding[52];
} mess_pm_lexec_exec_new;
_ASSERT_MSG_SIZE(mess_pm_lexec_exec_new);
typedef struct {
endpoint_t endpt;
@ -989,6 +1004,8 @@ typedef struct {
mess_lc_vfs_umask m_lc_vfs_umask;
mess_lc_vfs_umount m_lc_vfs_umount;
mess_lexec_pm_exec_new m_lexec_pm_exec_new;
mess_lsys_pm_getepinfo m_lsys_pm_getepinfo;
mess_lsys_pm_getprocnr m_lsys_pm_getprocnr;
@ -996,6 +1013,8 @@ typedef struct {
mess_lsys_vfs_copyfd m_lsys_vfs_copyfd;
mess_lsys_vfs_mapdriver m_lsys_vfs_mapdriver;
mess_pm_lexec_exec_new m_pm_lexec_exec_new;
mess_pm_lc_ptrace m_pm_lc_ptrace;
mess_pm_lc_time m_pm_lc_time;
mess_pm_lc_waitpid m_pm_lc_waitpid;

6
lib/libexec/exec_general.c
View file

@ -82,11 +82,11 @@ int libexec_pm_newexec(endpoint_t proc_e, struct exec_info *e)
memset(&m, 0, sizeof(m));
m.m_type = PM_EXEC_NEW;
m.PM_EXEC_NEW_ENDPT = proc_e;
m.PM_EXEC_NEW_PTR = (char *)e;
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.PM_EXEC_NEW_SUID;
e->allow_setuid = !!m.m_pm_lexec_exec_new.suid;
return(m.m_type);
}

11
servers/pm/exec.c
View file

@ -61,7 +61,7 @@ int do_exec()
int do_newexec(void)
{
int proc_e, proc_n, allow_setuid;
char *ptr;
vir_bytes ptr;
struct mproc *rmp;
struct exec_info args;
int r;
@ -69,14 +69,13 @@ int do_newexec(void)
if (who_e != VFS_PROC_NR && who_e != RS_PROC_NR)
return EPERM;
proc_e= m_in.PM_EXEC_NEW_ENDPT;
proc_e= m_in.m_lexec_pm_exec_new.endpt;
if (pm_isokendpt(proc_e, &proc_n) != OK) {
panic("do_newexec: got bad endpoint: %d", proc_e);
}
rmp= &mproc[proc_n];
ptr= m_in.PM_EXEC_NEW_PTR;
r= sys_datacopy(who_e, (vir_bytes)ptr,
SELF, (vir_bytes)&args, sizeof(args));
ptr= m_in.m_lexec_pm_exec_new.ptr;
r= sys_datacopy(who_e, ptr, SELF, (vir_bytes)&args, sizeof(args));
if (r != OK)
panic("do_newexec: sys_datacopy failed: %d", r);
@ -115,7 +114,7 @@ int do_newexec(void)
/* Kill process if something goes wrong after this point. */
rmp->mp_flags |= PARTIAL_EXEC;
mp->mp_reply.PM_EXEC_NEW_SUID = (allow_setuid && args.allow_setuid);
mp->mp_reply.m_pm_lexec_exec_new.suid = (allow_setuid && args.allow_setuid);
return r;
}