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sys/kern/kern_procctl.c
Show First 20 Lines • Show All 514 Lines • ▼ Show 20 Lines | if ((p->p_flag & P_WEXIT) == 0) { | ||||
} | } | ||||
PROC_LOCK(p); | PROC_LOCK(p); | ||||
_PRELE(p); | _PRELE(p); | ||||
} | } | ||||
*data = d; | *data = d; | ||||
return (0); | return (0); | ||||
} | } | ||||
static int | |||||
stackgap_ctl(struct thread *td, struct proc *p, int state) | |||||
{ | |||||
PROC_LOCK_ASSERT(p, MA_OWNED); | |||||
alc: The placement of blank lines around PROC_LOCK_ASSERT() is different between this function and… | |||||
if ((state & ~(PROC_STACKGAP_ENABLE | PROC_STACKGAP_DISABLE | | |||||
PROC_STACKGAP_ENABLE_EXEC | PROC_STACKGAP_DISABLE_EXEC)) != 0) | |||||
return (EINVAL); | |||||
switch (state & (PROC_STACKGAP_ENABLE | PROC_STACKGAP_DISABLE)) { | |||||
case PROC_STACKGAP_ENABLE: | |||||
if ((p->p_flag2 & P2_STKGAP_DISABLE) != 0) | |||||
return (EINVAL); | |||||
break; | |||||
case PROC_STACKGAP_DISABLE: | |||||
p->p_flag2 |= P2_STKGAP_DISABLE; | |||||
break; | |||||
case 0: | |||||
break; | |||||
default: | |||||
return (EINVAL); | |||||
} | |||||
switch (state & (PROC_STACKGAP_ENABLE_EXEC | | |||||
PROC_STACKGAP_DISABLE_EXEC)) { | |||||
case PROC_STACKGAP_ENABLE_EXEC: | |||||
p->p_flag2 &= ~P2_STKGAP_DISABLE_EXEC; | |||||
break; | |||||
case PROC_STACKGAP_DISABLE_EXEC: | |||||
p->p_flag2 |= P2_STKGAP_DISABLE_EXEC; | |||||
break; | |||||
case 0: | |||||
break; | |||||
default: | |||||
return (EINVAL); | |||||
} | |||||
return (0); | |||||
} | |||||
static int | |||||
stackgap_status(struct thread *td, struct proc *p, int *data) | |||||
{ | |||||
PROC_LOCK_ASSERT(p, MA_OWNED); | |||||
*data = (p->p_flag2 & P2_STKGAP_DISABLE) != 0 ? PROC_STACKGAP_DISABLE : | |||||
PROC_STACKGAP_ENABLE; | |||||
*data |= (p->p_flag2 & P2_STKGAP_DISABLE_EXEC) != 0 ? | |||||
PROC_STACKGAP_DISABLE_EXEC : PROC_STACKGAP_ENABLE_EXEC; | |||||
return (0); | |||||
} | |||||
#ifndef _SYS_SYSPROTO_H_ | #ifndef _SYS_SYSPROTO_H_ | ||||
struct procctl_args { | struct procctl_args { | ||||
idtype_t idtype; | idtype_t idtype; | ||||
id_t id; | id_t id; | ||||
int com; | int com; | ||||
void *data; | void *data; | ||||
}; | }; | ||||
#endif | #endif | ||||
Show All 12 Lines | sys_procctl(struct thread *td, struct procctl_args *uap) | ||||
if (uap->com >= PROC_PROCCTL_MD_MIN) | if (uap->com >= PROC_PROCCTL_MD_MIN) | ||||
return (cpu_procctl(td, uap->idtype, uap->id, | return (cpu_procctl(td, uap->idtype, uap->id, | ||||
uap->com, uap->data)); | uap->com, uap->data)); | ||||
switch (uap->com) { | switch (uap->com) { | ||||
case PROC_ASLR_CTL: | case PROC_ASLR_CTL: | ||||
case PROC_PROTMAX_CTL: | case PROC_PROTMAX_CTL: | ||||
case PROC_SPROTECT: | case PROC_SPROTECT: | ||||
case PROC_STACKGAP_CTL: | |||||
case PROC_TRACE_CTL: | case PROC_TRACE_CTL: | ||||
case PROC_TRAPCAP_CTL: | case PROC_TRAPCAP_CTL: | ||||
error = copyin(uap->data, &flags, sizeof(flags)); | error = copyin(uap->data, &flags, sizeof(flags)); | ||||
if (error != 0) | if (error != 0) | ||||
return (error); | return (error); | ||||
data = &flags; | data = &flags; | ||||
break; | break; | ||||
case PROC_REAP_ACQUIRE: | case PROC_REAP_ACQUIRE: | ||||
Show All 14 Lines | sys_procctl(struct thread *td, struct procctl_args *uap) | ||||
case PROC_REAP_KILL: | case PROC_REAP_KILL: | ||||
error = copyin(uap->data, &x.rk, sizeof(x.rk)); | error = copyin(uap->data, &x.rk, sizeof(x.rk)); | ||||
if (error != 0) | if (error != 0) | ||||
return (error); | return (error); | ||||
data = &x.rk; | data = &x.rk; | ||||
break; | break; | ||||
case PROC_ASLR_STATUS: | case PROC_ASLR_STATUS: | ||||
case PROC_PROTMAX_STATUS: | case PROC_PROTMAX_STATUS: | ||||
case PROC_STACKGAP_STATUS: | |||||
case PROC_TRACE_STATUS: | case PROC_TRACE_STATUS: | ||||
case PROC_TRAPCAP_STATUS: | case PROC_TRAPCAP_STATUS: | ||||
data = &flags; | data = &flags; | ||||
break; | break; | ||||
case PROC_PDEATHSIG_CTL: | case PROC_PDEATHSIG_CTL: | ||||
error = copyin(uap->data, &signum, sizeof(signum)); | error = copyin(uap->data, &signum, sizeof(signum)); | ||||
if (error != 0) | if (error != 0) | ||||
return (error); | return (error); | ||||
Show All 13 Lines | case PROC_REAP_STATUS: | ||||
break; | break; | ||||
case PROC_REAP_KILL: | case PROC_REAP_KILL: | ||||
error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); | error1 = copyout(&x.rk, uap->data, sizeof(x.rk)); | ||||
if (error == 0) | if (error == 0) | ||||
error = error1; | error = error1; | ||||
break; | break; | ||||
case PROC_ASLR_STATUS: | case PROC_ASLR_STATUS: | ||||
case PROC_PROTMAX_STATUS: | case PROC_PROTMAX_STATUS: | ||||
case PROC_STACKGAP_STATUS: | |||||
case PROC_TRACE_STATUS: | case PROC_TRACE_STATUS: | ||||
case PROC_TRAPCAP_STATUS: | case PROC_TRAPCAP_STATUS: | ||||
if (error == 0) | if (error == 0) | ||||
error = copyout(&flags, uap->data, sizeof(flags)); | error = copyout(&flags, uap->data, sizeof(flags)); | ||||
break; | break; | ||||
case PROC_PDEATHSIG_STATUS: | case PROC_PDEATHSIG_STATUS: | ||||
if (error == 0) | if (error == 0) | ||||
error = copyout(&signum, uap->data, sizeof(signum)); | error = copyout(&signum, uap->data, sizeof(signum)); | ||||
Show All 13 Lines | kern_procctl_single(struct thread *td, struct proc *p, int com, void *data) | ||||
case PROC_ASLR_STATUS: | case PROC_ASLR_STATUS: | ||||
return (aslr_status(td, p, data)); | return (aslr_status(td, p, data)); | ||||
case PROC_SPROTECT: | case PROC_SPROTECT: | ||||
return (protect_set(td, p, *(int *)data)); | return (protect_set(td, p, *(int *)data)); | ||||
case PROC_PROTMAX_CTL: | case PROC_PROTMAX_CTL: | ||||
return (protmax_ctl(td, p, *(int *)data)); | return (protmax_ctl(td, p, *(int *)data)); | ||||
case PROC_PROTMAX_STATUS: | case PROC_PROTMAX_STATUS: | ||||
return (protmax_status(td, p, data)); | return (protmax_status(td, p, data)); | ||||
case PROC_STACKGAP_CTL: | |||||
return (stackgap_ctl(td, p, *(int *)data)); | |||||
case PROC_STACKGAP_STATUS: | |||||
return (stackgap_status(td, p, data)); | |||||
case PROC_REAP_ACQUIRE: | case PROC_REAP_ACQUIRE: | ||||
return (reap_acquire(td, p)); | return (reap_acquire(td, p)); | ||||
case PROC_REAP_RELEASE: | case PROC_REAP_RELEASE: | ||||
return (reap_release(td, p)); | return (reap_release(td, p)); | ||||
case PROC_REAP_STATUS: | case PROC_REAP_STATUS: | ||||
return (reap_status(td, p, data)); | return (reap_status(td, p, data)); | ||||
case PROC_REAP_GETPIDS: | case PROC_REAP_GETPIDS: | ||||
return (reap_getpids(td, p, data)); | return (reap_getpids(td, p, data)); | ||||
Show All 26 Lines | kern_procctl(struct thread *td, idtype_t idtype, id_t id, int com, void *data) | ||||
case PROC_ASLR_STATUS: | case PROC_ASLR_STATUS: | ||||
case PROC_PROTMAX_CTL: | case PROC_PROTMAX_CTL: | ||||
case PROC_PROTMAX_STATUS: | case PROC_PROTMAX_STATUS: | ||||
case PROC_REAP_ACQUIRE: | case PROC_REAP_ACQUIRE: | ||||
case PROC_REAP_RELEASE: | case PROC_REAP_RELEASE: | ||||
case PROC_REAP_STATUS: | case PROC_REAP_STATUS: | ||||
case PROC_REAP_GETPIDS: | case PROC_REAP_GETPIDS: | ||||
case PROC_REAP_KILL: | case PROC_REAP_KILL: | ||||
case PROC_STACKGAP_CTL: | |||||
case PROC_STACKGAP_STATUS: | |||||
case PROC_TRACE_STATUS: | case PROC_TRACE_STATUS: | ||||
case PROC_TRAPCAP_STATUS: | case PROC_TRAPCAP_STATUS: | ||||
case PROC_PDEATHSIG_CTL: | case PROC_PDEATHSIG_CTL: | ||||
case PROC_PDEATHSIG_STATUS: | case PROC_PDEATHSIG_STATUS: | ||||
if (idtype != P_PID) | if (idtype != P_PID) | ||||
return (EINVAL); | return (EINVAL); | ||||
} | } | ||||
Show All 32 Lines | kern_procctl(struct thread *td, idtype_t idtype, id_t id, int com, void *data) | ||||
case PROC_REAP_RELEASE: | case PROC_REAP_RELEASE: | ||||
sx_xlock(&proctree_lock); | sx_xlock(&proctree_lock); | ||||
tree_locked = true; | tree_locked = true; | ||||
break; | break; | ||||
case PROC_ASLR_CTL: | case PROC_ASLR_CTL: | ||||
case PROC_ASLR_STATUS: | case PROC_ASLR_STATUS: | ||||
case PROC_PROTMAX_CTL: | case PROC_PROTMAX_CTL: | ||||
case PROC_PROTMAX_STATUS: | case PROC_PROTMAX_STATUS: | ||||
case PROC_STACKGAP_CTL: | |||||
case PROC_STACKGAP_STATUS: | |||||
case PROC_TRACE_STATUS: | case PROC_TRACE_STATUS: | ||||
case PROC_TRAPCAP_STATUS: | case PROC_TRAPCAP_STATUS: | ||||
tree_locked = false; | tree_locked = false; | ||||
break; | break; | ||||
default: | default: | ||||
return (EINVAL); | return (EINVAL); | ||||
} | } | ||||
▲ Show 20 Lines • Show All 59 Lines • Show Last 20 Lines |
The placement of blank lines around PROC_LOCK_ASSERT() is different between this function and stackgap_status() for no obvious reason.