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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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29973f8a88
If the cmd is RCPK_GET_STRUCT, copy_to_user will copy info to user space. As info->port.ops is the address of a constant object rocket_port_ops (assigned in init_r_port), a kernel address leakage happens. Remove the RCPK_GET_STRUCT ioctl. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* rocket.h --- the exported interface of the rocket driver to its configuration program.
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*
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* Written by Theodore Ts'o, Copyright 1997.
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* Copyright 1997 Comtrol Corporation.
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*
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*/
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/* Model Information Struct */
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typedef struct {
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unsigned long model;
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char modelString[80];
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unsigned long numPorts;
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int loadrm2;
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int startingPortNumber;
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} rocketModel_t;
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struct rocket_config {
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int line;
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int flags;
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int closing_wait;
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int close_delay;
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int port;
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int reserved[32];
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};
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struct rocket_ports {
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int tty_major;
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int callout_major;
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rocketModel_t rocketModel[8];
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};
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struct rocket_version {
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char rocket_version[32];
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char rocket_date[32];
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char reserved[64];
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};
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/*
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* Rocketport flags
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*/
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/*#define ROCKET_CALLOUT_NOHUP 0x00000001 */
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#define ROCKET_FORCE_CD 0x00000002
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#define ROCKET_HUP_NOTIFY 0x00000004
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#define ROCKET_SPLIT_TERMIOS 0x00000008
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#define ROCKET_SPD_MASK 0x00000070
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#define ROCKET_SPD_HI 0x00000010 /* Use 57600 instead of 38400 bps */
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#define ROCKET_SPD_VHI 0x00000020 /* Use 115200 instead of 38400 bps */
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#define ROCKET_SPD_SHI 0x00000030 /* Use 230400 instead of 38400 bps */
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#define ROCKET_SPD_WARP 0x00000040 /* Use 460800 instead of 38400 bps */
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#define ROCKET_SAK 0x00000080
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#define ROCKET_SESSION_LOCKOUT 0x00000100
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#define ROCKET_PGRP_LOCKOUT 0x00000200
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#define ROCKET_RTS_TOGGLE 0x00000400
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#define ROCKET_MODE_MASK 0x00003000
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#define ROCKET_MODE_RS232 0x00000000
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#define ROCKET_MODE_RS485 0x00001000
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#define ROCKET_MODE_RS422 0x00002000
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#define ROCKET_FLAGS 0x00003FFF
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#define ROCKET_USR_MASK 0x0071 /* Legal flags that non-privileged
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* users can set or reset */
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/*
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* For closing_wait and closing_wait2
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*/
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#define ROCKET_CLOSING_WAIT_NONE ASYNC_CLOSING_WAIT_NONE
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#define ROCKET_CLOSING_WAIT_INF ASYNC_CLOSING_WAIT_INF
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/*
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* Rocketport ioctls -- "RP"
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*/
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#define RCKP_GET_CONFIG 0x00525002
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#define RCKP_SET_CONFIG 0x00525003
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#define RCKP_GET_PORTS 0x00525004
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#define RCKP_RESET_RM2 0x00525005
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#define RCKP_GET_VERSION 0x00525006
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/* Rocketport Models */
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#define MODEL_RP32INTF 0x0001 /* RP 32 port w/external I/F */
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#define MODEL_RP8INTF 0x0002 /* RP 8 port w/external I/F */
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#define MODEL_RP16INTF 0x0003 /* RP 16 port w/external I/F */
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#define MODEL_RP8OCTA 0x0005 /* RP 8 port w/octa cable */
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#define MODEL_RP4QUAD 0x0004 /* RP 4 port w/quad cable */
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#define MODEL_RP8J 0x0006 /* RP 8 port w/RJ11 connectors */
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#define MODEL_RP4J 0x0007 /* RP 4 port w/RJ45 connectors */
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#define MODEL_RP8SNI 0x0008 /* RP 8 port w/ DB78 SNI connector */
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#define MODEL_RP16SNI 0x0009 /* RP 16 port w/ DB78 SNI connector */
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#define MODEL_RPP4 0x000A /* RP Plus 4 port */
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#define MODEL_RPP8 0x000B /* RP Plus 8 port */
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#define MODEL_RP2_232 0x000E /* RP Plus 2 port RS232 */
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#define MODEL_RP2_422 0x000F /* RP Plus 2 port RS232 */
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/* Rocketmodem II Models */
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#define MODEL_RP6M 0x000C /* RM 6 port */
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#define MODEL_RP4M 0x000D /* RM 4 port */
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/* Universal PCI boards */
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#define MODEL_UPCI_RP32INTF 0x0801 /* RP UPCI 32 port w/external I/F */
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#define MODEL_UPCI_RP8INTF 0x0802 /* RP UPCI 8 port w/external I/F */
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#define MODEL_UPCI_RP16INTF 0x0803 /* RP UPCI 16 port w/external I/F */
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#define MODEL_UPCI_RP8OCTA 0x0805 /* RP UPCI 8 port w/octa cable */
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#define MODEL_UPCI_RM3_8PORT 0x080C /* RP UPCI Rocketmodem III 8 port */
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#define MODEL_UPCI_RM3_4PORT 0x080C /* RP UPCI Rocketmodem III 4 port */
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/* Compact PCI 16 port */
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#define MODEL_CPCI_RP16INTF 0x0903 /* RP Compact PCI 16 port w/external I/F */
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/* All ISA boards */
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#define MODEL_ISA 0x1000
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