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Message type for PM_SET{,E}UID

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Change-Id: I5421646713e74562400e705b4a0f8b99f1325d64
This commit is contained in:
Lionel Sambuc 2014-05-13 14:52:48 +02:00
parent b9939b3ed8
commit a6c5528e96
4 changed files with 11 additions and 6 deletions
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3
include/minix/callnr.h
View file

@ -85,9 +85,6 @@
#define PM_SIG_SET m2_sigset /* sigset_t */
#define PM_SIG_CTX m2_p1 /* struct sigcontext * */
/* Field names for the setuid(2)/seteuid(2) calls. */
#define PM_SETUID_UID m1_i1 /* uid_t */
/* Field names for the setgid(2)/setegid(2) calls. */
#define PM_SETGID_GID m1_i1 /* gid_t */

8
include/minix/ipc.h
View file

@ -195,6 +195,13 @@ typedef struct {
} mess_lc_pm_reboot;
_ASSERT_MSG_SIZE(mess_lc_pm_reboot);
typedef struct {
uid_t uid;
uint8_t padding[52];
} mess_lc_pm_setuid;
_ASSERT_MSG_SIZE(mess_lc_pm_setuid);
typedef struct {
int req;
int field;
@ -1034,6 +1041,7 @@ typedef struct {
mess_lc_pm_priority m_lc_pm_priority;
mess_lc_pm_ptrace m_lc_pm_ptrace;
mess_lc_pm_reboot m_lc_pm_reboot;
mess_lc_pm_setuid m_lc_pm_setuid;
mess_lc_pm_sysuname m_lc_pm_sysuname;
mess_lc_pm_time m_lc_pm_time;
mess_lc_pm_waitpid m_lc_pm_waitpid;

4
lib/libc/sys-minix/setuid.c
View file

@ -10,7 +10,7 @@ int setuid(uid_t usr)
message m;
memset(&m, 0, sizeof(m));
m.PM_SETUID_UID = usr;
m.m_lc_pm_setuid.uid = usr;
return(_syscall(PM_PROC_NR, PM_SETUID, &m));
}
@ -19,6 +19,6 @@ int seteuid(uid_t usr)
message m;
memset(&m, 0, sizeof(m));
m.PM_SETUID_UID = usr;
m.m_lc_pm_setuid.uid = usr;
return(_syscall(PM_PROC_NR, PM_SETEUID, &m));
}

2
servers/pm/getset.c
View file

@ -108,7 +108,7 @@ int do_set()
switch(call_nr) {
case PM_SETUID:
case PM_SETEUID:
uid = (uid_t) m_in.PM_SETUID_UID;
uid = m_in.m_lc_pm_setuid.uid;
if (rmp->mp_realuid != uid && rmp->mp_effuid != SUPER_USER)
return(EPERM);
if(call_nr == PM_SETUID) rmp->mp_realuid = uid;