db7182ddc3
This change refactors the process group implementation and adds support for sessions. The setsid(2) and getsid(2) system calls were added. psctl(2) now has PSCTL_TTYNAME, which lets you get the name of a process's terminal, and ps(1) now uses it. The initial terminal is now called /dev/tty1. /dev/tty is now a factory for the current terminal. A global lock now protects the process hierarchy which makes it safe to access other processes. This refactor removes potential vulnerabilities and increases system robustness. A number of terminal ioctls have been added. This is a compatible ABI change.
108 lines
2.2 KiB
C
108 lines
2.2 KiB
C
/*
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* Copyright (c) 2015, 2016 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* sortix/psctl.h
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* Process control interface.
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*/
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#ifndef INCLUDE_SORTIX_PSCTL_H
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#define INCLUDE_SORTIX_PSCTL_H
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#include <sys/cdefs.h>
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#include <sys/__/types.h>
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#include <sortix/tmns.h>
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#ifndef __size_t_defined
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#define __size_t_defined
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#define __need_size_t
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#include <stddef.h>
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#endif
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#ifndef __gid_t_defined
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#define __gid_t_defined
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typedef __gid_t gid_t;
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#endif
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#ifndef __pid_t_defined
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#define __pid_t_defined
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typedef __pid_t pid_t;
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#endif
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#ifndef __uid_t_defined
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#define __uid_t_defined
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typedef __uid_t uid_t;
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#endif
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#define __PSCTL(s, v) (sizeof(struct s) << 16 | (v))
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#define PSCTL_PREV_PID __PSCTL(psctl_prev_pid, 1)
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struct psctl_prev_pid
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{
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pid_t prev_pid;
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};
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#define PSCTL_NEXT_PID __PSCTL(psctl_next_pid, 2)
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struct psctl_next_pid
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{
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pid_t next_pid;
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};
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#define PSCTL_STAT __PSCTL(psctl_stat, 3)
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struct psctl_stat
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{
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pid_t pid;
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pid_t ppid;
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pid_t ppid_prev;
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pid_t ppid_next;
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pid_t ppid_first;
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pid_t pgid;
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pid_t pgid_prev;
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pid_t pgid_next;
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pid_t pgid_first;
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pid_t sid;
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pid_t sid_prev;
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pid_t sid_next;
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pid_t sid_first;
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pid_t init;
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pid_t init_prev;
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pid_t init_next;
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pid_t init_first;
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uid_t uid;
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uid_t euid;
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gid_t gid;
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gid_t egid;
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int status;
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int nice;
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struct tmns tmns;
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};
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#define PSCTL_PROGRAM_PATH __PSCTL(psctl_program_path, 4)
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struct psctl_program_path
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{
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char* buffer;
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size_t size;
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};
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#define PSCTL_TTYNAME __PSCTL(psctl_program_path, 5)
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struct psctl_ttyname
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{
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char* buffer;
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size_t size;
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};
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#endif
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