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32 lines
938 B
Rust
32 lines
938 B
Rust
// SPDX-License-Identifier: MPL-2.0
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use super::SyscallReturn;
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use crate::{
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prelude::*,
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process::{Pid, ResourceType},
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};
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pub fn sys_prlimit64(
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pid: Pid,
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resource: u32,
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new_rlim_addr: Vaddr,
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old_rlim_addr: Vaddr,
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) -> Result<SyscallReturn> {
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let resource = ResourceType::try_from(resource)?;
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debug!(
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"pid = {}, resource = {:?}, new_rlim_addr = 0x{:x}, old_rlim_addr = 0x{:x}",
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pid, resource, new_rlim_addr, old_rlim_addr
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);
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let current = current!();
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let mut resource_limits = current.resource_limits().lock();
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if old_rlim_addr != 0 {
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let rlimit = resource_limits.get_rlimit(resource);
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CurrentUserSpace::get().write_val(old_rlim_addr, rlimit)?;
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}
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if new_rlim_addr != 0 {
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let new_rlimit = CurrentUserSpace::get().read_val(new_rlim_addr)?;
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*resource_limits.get_rlimit_mut(resource) = new_rlimit;
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}
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Ok(SyscallReturn::Return(0))
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}
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