procfs

package
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Published: Dec 10, 2024 License: Apache-2.0, MIT Imports: 12 Imported by: 4

Documentation

Overview

Package procfs holds utilities for getting procfs information for sandboxed processes.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type FDInfo

type FDInfo struct {
	// Number is the FD number.
	Number int32 `json:"number"`
	// Path is the path of the file that FD represents.
	Path string `json:"path,omitempty"`
	// Mode is the file mode.
	Mode uint16 `json:"mode"`
}

FDInfo contains information about an application file descriptor.

type Mapping

type Mapping struct {
	Address     hostarch.AddrRange  `json:"address,omitempty"`
	Permissions hostarch.AccessType `json:"permissions"`
	Private     string              `json:"private,omitempty"`
	Offset      uint64              `json:"offset"`
	DevMajor    uint32              `json:"deviceMajor,omitempty"`
	DevMinor    uint32              `json:"deviceMinor,omitempty"`
	Inode       uint64              `json:"inode,omitempty"`
	Pathname    string              `json:"pathname,omitempty"`
}

Mapping contains information for /proc/[pid]/maps.

type ProcessProcfsDump

type ProcessProcfsDump struct {
	// Exe is the symlink target of /proc/[pid]/exe.
	Exe string `json:"exe,omitempty"`
	// Args is /proc/[pid]/cmdline split into an array.
	Args []string `json:"args,omitempty"`
	// Env is /proc/[pid]/environ split into an array.
	Env []string `json:"env,omitempty"`
	// CWD is the symlink target of /proc/[pid]/cwd.
	CWD string `json:"cwd,omitempty"`
	// FDs contains the directory entries of /proc/[pid]/fd and also contains the
	// symlink target for each FD.
	FDs []FDInfo `json:"fdlist,omitempty"`
	// StartTime is the process start time in nanoseconds since Unix epoch.
	StartTime int64 `json:"clone_ts,omitempty"`
	// Root is /proc/[pid]/root.
	Root string `json:"root,omitempty"`
	// Limits constains resource limits for this process. Currently only
	// RLIMIT_NOFILE is supported.
	Limits map[string]limits.Limit `json:"limits,omitempty"`
	// Cgroup is /proc/[pid]/cgroup split into an array.
	Cgroup []kernel.TaskCgroupEntry `json:"cgroup,omitempty"`
	// Status is /proc/[pid]/status.
	Status Status `json:"status,omitempty"`
	// Stat is /proc/[pid]/stat.
	Stat Stat `json:"stat,omitempty"`
	// Maps is /proc/[pid]/maps.
	Maps []Mapping `json:"maps,omitempty"`
}

ProcessProcfsDump contains the procfs dump for one process. For more details on fields that directly correspond to /proc fields, see proc(5).

func Dump

Dump returns a procfs dump for process pid. t must be a task in process pid.

type Stat

type Stat struct {
	PGID int32 `json:"pgid"`
	SID  int32 `json:"sid"`
}

Stat contains information for /proc/[pid]/stat.

type Status

type Status struct {
	Comm   string `json:"comm,omitempty"`
	PID    int32  `json:"pid"`
	PPID   int32  `json:"ppid"`
	UID    UIDGID `json:"uid,omitempty"`
	GID    UIDGID `json:"gid,omitempty"`
	VMSize uint64 `json:"vm_size,omitempty"`
	VMRSS  uint64 `json:"vm_rss,omitempty"`
}

Status contains information for /proc/[pid]/status.

type UIDGID

type UIDGID struct {
	Real      uint32 `json:"real"`
	Effective uint32 `json:"effective"`
	Saved     uint32 `json:"saved"`
}

UIDGID contains information for /proc/[pid]/status/{uid,gid}.

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