From d7a01d53f700f7e15d3691fc593938d2cbac541e Mon Sep 17 00:00:00 2001 From: Albert van der Linde Date: Thu, 16 Jul 2020 07:04:53 +0000 Subject: sys/linux: add descriptions for raw character devices --- sys/linux/dev_char_raw.txt | 57 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 sys/linux/dev_char_raw.txt (limited to 'sys/linux') diff --git a/sys/linux/dev_char_raw.txt b/sys/linux/dev_char_raw.txt new file mode 100644 index 000000000..2c9ff06b0 --- /dev/null +++ b/sys/linux/dev_char_raw.txt @@ -0,0 +1,57 @@ +# Copyright 2020 syzkaller project authors. All rights reserved. +# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file. + +# drivers/char/raw.c +include + +resource fd_char_raw[fd] +resource fd_char_raw_ctl[fd] + +openat$char_raw_ctl(fd const[AT_FDCWD], file ptr[in, string["/dev/raw/rawctl"]], flags flags[open_flags], mode const[0]) fd_char_raw_ctl +# /dev/raw/raw# only exists if ioctl$RAW_CHAR_CTRL_SETBIND executed first. +syz_open_dev$char_raw(file ptr[in, string["/dev/raw/raw#"]], raw_minor proc[1, 2], flags flags[open_flags]) fd_char_raw + +read$char_raw(fd fd_char_raw, buf ptr[out, raw_char_buffer], count len[buf]) +write$char_raw(fd fd_char_raw, buf ptr[in, raw_char_buffer], count len[buf]) + +raw_char_buffer { + buf array[int8, 1:65536] +} [align[512]] + +# IOCTL on /dev/raw/rawctl +ioctl$RAW_CHAR_CTRL_SETBIND(fd fd_char_raw_ctl, cmd const[RAW_SETBIND], arg ptr[in, raw_bind_info]) +ioctl$RAW_CHAR_CTRL_GETBIND(fd fd_char_raw_ctl, cmd const[RAW_GETBIND], arg ptr[inout, raw_bind_info]) + +# TODO: add other suitable major types +raw_bind_info { + raw_minor proc[1, 2, int32] + block_major const[LOOP_MAJOR, int64] + block_minor proc[0, 1, int64] +} + +# IOCTL on /dev/raw/rawN +# similar to dev_block.txt - redefined for fd_char_raw +include +ioctl$CHAR_RAW_FLSBUF(fd fd_char_raw, cmd const[BLKFLSBUF], arg ptr[in, intptr]) +ioctl$CHAR_RAW_ROSET(fd fd_char_raw, cmd const[BLKROSET], arg ptr[in, intptr]) +ioctl$CHAR_RAW_DISCARD(fd fd_char_raw, cmd const[BLKDISCARD], arg ptr[in, intptr]) +ioctl$CHAR_RAW_SECDISCARD(fd fd_char_raw, cmd const[BLKSECDISCARD], arg ptr[in, intptr]) +ioctl$CHAR_RAW_ZEROOUT(fd fd_char_raw, cmd const[BLKZEROOUT], arg ptr[in, blk_zone_range]) +ioctl$CHAR_RAW_REPORTZONE(fd fd_char_raw, cmd const[BLKREPORTZONE], arg ptr[in, blk_zone_report]) +ioctl$CHAR_RAW_RESETZONE(fd fd_char_raw, cmd const[BLKRESETZONE], arg ptr[in, blk_zone_range]) +ioctl$CHAR_RAW_RAGET(fd fd_char_raw, cmd const[BLKRAGET], arg ptr[out, intptr]) +ioctl$CHAR_RAW_ROGET(fd fd_char_raw, cmd const[BLKROGET], arg ptr[out, intptr]) +ioctl$CHAR_RAW_BSZGET(fd fd_char_raw, cmd const[BLKBSZGET], arg ptr[out, intptr]) +ioctl$CHAR_RAW_PBSZGET(fd fd_char_raw, cmd const[BLKPBSZGET], arg ptr[out, intptr]) +ioctl$CHAR_RAW_IOMIN(fd fd_char_raw, cmd const[BLKIOMIN], arg ptr[out, intptr]) +ioctl$CHAR_RAW_IOOPT(fd fd_char_raw, cmd const[BLKIOOPT], arg ptr[out, intptr]) +ioctl$CHAR_RAW_ALIGNOFF(fd fd_char_raw, cmd const[BLKALIGNOFF], arg ptr[out, intptr]) +ioctl$CHAR_RAW_SECTGET(fd fd_char_raw, cmd const[BLKSECTGET], arg ptr[out, intptr]) +ioctl$CHAR_RAW_ROTATIONAL(fd fd_char_raw, cmd const[BLKROTATIONAL], arg ptr[out, intptr]) +ioctl$CHAR_RAW_FRASET(fd fd_char_raw, cmd const[BLKFRASET], arg ptr[in, intptr]) +ioctl$CHAR_RAW_BSZSET(fd fd_char_raw, cmd const[BLKBSZSET], arg ptr[in, intptr]) +ioctl$CHAR_RAW_PG(fd fd_char_raw, cmd const[BLKPG], arg ptr[in, blkpg_ioctl_arg]) +ioctl$CHAR_RAW_RRPART(fd fd_char_raw, cmd const[BLKRRPART], arg const[0]) +ioctl$CHAR_RAW_GETSIZE(fd fd_char_raw, cmd const[BLKGETSIZE], arg ptr[out, intptr]) +ioctl$CHAR_RAW_GETSIZE64(fd fd_char_raw, cmd const[BLKGETSIZE64], arg ptr[out, int64]) +ioctl$CHAR_RAW_HDIO_GETGEO(fd fd_char_raw, cmd const[HDIO_GETGEO], arg ptr[out, hd_geometry]) -- cgit mrf-deployment